This document lists various hazards and the corresponding mitigating controls. It covers biological hazards like animals, insects, blood borne pathogens, and contaminated food or water. Controls include proper PPE, hygiene practices, immunizations, and food/water safety standards. It also addresses body mechanics hazards from moving objects, lifting, and weather. Controls involve following lifting techniques, securing loads, and suspending activities during strong winds/floods. Finally, it discusses chemical hazards such as flammables and reactivity. Controls consist of proper storage, ventilation, ignition source elimination, PPE, and following MSDS guidelines.

1. Hazard Group Hazards Hazards Sub Category Mitigating Controls
Permits
Cold Work Permit
Hot Work Naked Flame Permit
Hot Work Spark Potential Permit
Breaking Containment Permit
Other Certificates
Bypass Override Certificate
Confined Space Entry Certificate
Diving Certificate
Ground Disturbance Certificate
Lock, Tag and Try
Electrical Certificate
1. Biological
Animals/Insects
Bites, Stings, Scratches and Other
Contact
Keep away from all animals
Ensure good housekeeping standards are maintained at all times
If a nest or large amount of insects found notify supervisor
If bit/stung seek medical attention
Appropriate PPE to be worn at all times where contact with animals or insects may occur (gloves, protective
clothing, eye/face protection)
Verify workers are not allergic to bee, insect stings etc.
High standards of personal hygiene are required from all staff.
Bed linen is changed regularly and when the occupant departs the Installation.
Regular inspection of buildings and accommodation areas is carried out for insects and rodents.
Blood Borne Pathogens
Personnel Exposure
Proper training required to work with BBP

2. Appropriate PPE to be worn at all times where contact with biological agents may occur (gloves, protective
clothing, eye/face protection)
Contaminated equipment to be handled, transported, and disposed of in accordance with procedure
Treat all body fluids as potentially infected - employ good personal hygiene
Ensure procedural controls are in place and understood by those potentially affected
Immunization against Hepatitis B with regular monitoring of antibody titre levels and boosters where
appropriate (No immunization for Hep C or HIV currently available).
Careful handling and disposal of sharps
Chronic Dermatitis sufferers be extra cautious
Cover all cuts etc with waterproof plasters
Use PPE - Latex powder free disposable gloves, disposable aprons, visors, goggles, masks etc appropriate to the
perceived risk
Clear up spillages as soon as possible
Mark up known and suspected items as clinical waste for disposal
Ensure correct disposal of sharps
Improperly Handled Food and
Contaminated Water
Illness
Keep potable water on supply
Keep track of expiration dates on food
Never eat or drink anything with foul odour
Follow Food Safety Standard
Follow Water Safety Standard
Water receptacles (tanks etc) are regularly cleaned and serviced, the water is tested regularly (minimum twice
per year),treated with alternating biocides and disinfected by chlorination.
Water systems are designed to give fast throughput of water with no points where the water can stand
undisturbed for long periods.
Taps and showers are regularly cleaned and serviced
Water Monitoring e.g. Legionella is widespread in nature, sampling often yields positive results. There are so
many variables that water sampling is only appropriate to check the efficacy of the water treatment regime
Flush water systems for at least 10 minutes if they have been out of use for a significant period of time
Review of preparation methods & area (kitchens etc.) by competent personnel
A Hazard Analysis Critical Control Point (HACCP) study is required

3. Food handlers are medically screened. Stool tests for enteric pathogenic organisms or parasites will be done as
required.
Food handlers are required to report any gastro-intestinal illness or close contact with anyone with such illness.
An Assured Safe Catering system must be in place and include strict procedures for food storage and display
with strict adherence to temperature and time control of foodstuffs on display
Catering contracts set high standards of food hygiene, with well developed procedures.
Carry out regular food hygiene inspections.
The Catering Contractor and Company to carry out regular Environmental Health audits. The frequency is
determined by the level of risk for the individual unit.
Ensure birds or vermin are unable to access any foodstuffs
Potable water comes from trusted water supply.
Quarterly potable water samples are taken and sent for bacteriological/microbiological analysis.
Annual potable water samples are taken and sent for chemical analysis.
Plants
Personnel Exposure Keep away from irritant plants, bushes or cactus, etc
Verify workers are not allergic to plants, bushes, cactus etc
Remove plants and bushes from work area
2. Body Mechanics
Vehicle, Vessel, Tool and
Equipment Movement
Moving Objects/ Machinery/
Equipment
Tag lines are to be attached to suspended objects
Assign a qualified signal person for hoisting and rigging communications
Do not exceed the maximum weight and height of the load
Inspect heavy equipment and ensure it is in good condition
Set all outriggers to their designated position for operation
Barricade the swing radius of the crane
Do not elevate the platform of MEWP if it is not on a level surface
Maintain minimum safe working distance (10 feet) from power lines
Operate a forklift with the load within the rated load capacity of the truck and carry loads as close to the ground
as possible

4. All hand tools and equipment to be examined daily/ before use and defects rectified
Ensure Journey Management Plans are in place
Barricade/signage/reflective gear in place/worn
Divert vehicular traffic away from equipment and/or work area
Do not use mobile phones while operating motorized vehicles/equipment
Lock casters to prevent scaffold from rolling
Make the load lighter
Improve the shape/size/flexibility of the load
Improve packaging to stabilize contents
Move liquids/powders in smaller containers
Bring heavier side of load closer to body
Improve grip with special gloves/suction pads/tools
Add handholds/hand grips
Ensure rough/sharp/hot/cold objects are properly wrapped/protected
Ensure handlers vision is not impaired by load
Body Positioning (Lifting, Straining,
Bending, Limited Movement)
Manual Handling/Lifting
Establish weight of object before lifting. Weight not to exceed 25 kgs
Seek assistance when lifting a heavy load
Ensure good grip available on the object being lifted/moved
Avoid awkward body postures/wrist postures and prolonged static postures
Check sharp edges have been removed or padding protection fitted
Effort is made to design out load handling by mechanization and automation.
Tasks are designed to minimize the amount of manual handling, and especially twisting movements.
Loads are kept as light as possible.
New Worksites are designed to best ergonomic practice. Awareness of inherited ergonomic problems required.
Good lifting and handling techniques are taught (Information/Instruction and Training).
Individuals are trained before being allowed to use company provided gymnasium equipment.
Administrative methods e.g. signs, warnings, instruction etc are used to ensure correct manual handling
information is available
Awareness of and adherence to behavioural safety programmes

5. Human Factors Engineering is incorporated preferably in the project design phase
Wind
Strong Wind
Do not operate MEWP lift under abnormal weather. Lower the boom to the ground and secure
Do not work on rooftops under strong wind condition
Suspend crane lift activities under high wind speed conditions
Water
Rain, Floods
Do not drive or pass through rivers or water currents
Protect trenches from water infiltration
3. Chemical
Flammable or Combustible
Materials
Fire
Store flammable materials in designated flammable material storage area
Conduct gas testing as required to ensure flammable atmosphere not present
Ensure that flammable materials are stored in a well ventilated area
Identify and eliminate open flames or ignition sources where flammable atmospheres may be present
Ensure fire prevention & protection measures are in place (fire watch, fixed monitoring systems, alarms,
detection systems)
Minimize combustible materials present through good housekeeping practices
Obtain and read the Material Safety Data Sheets (MSDSs) for all of the materials you work with.
Awareness of all of the hazards (fire/explosion, health, chemical reactivity) of the materials involved in job
Know which of the materials on the job are flammable or combustible liquids - ensure MSDS is available and
requirements in place
Eliminate ignition sources (sparks, smoking, flames, hot surfaces) when working with flammable and
combustible liquids.
Use the smallest amount of flammable liquid necessary in the work area.
Keep storage areas cool and dry.
Store flammable and combustible liquids away from incompatible materials (e.g., oxidizers).
Use approved containers for disposal of rags and other work.
Store, handle and use flammable and combustible liquids in well-ventilated areas.

6. Use approved equipment, including labelled safety containers, for flammable and combustible liquids.
Keep containers closed when not in use.
Bond and ground metal containers when transferring flammable and combustible liquids.
Practice good housekeeping and equipment maintenance. Keep area clear of burnable materials.
Wear the proper personal protective equipment as specified by the MSDS
Knowledge by work crew of how to handle emergencies (fires, spills, personal injury) involving the flammable
and combustible liquids
Drip trays to be in place around equipment being worked on.
No paint spraying within one meter of air intake and ventilation systems.
Tank levels to be checked before and during filling.
Mixing of substances to take place in well ventilated areas.
Only quantities of substances required for immediate use to be kept on site.
Closed drains to be checked prior to draining down vessels to ensure there are no blockages.
Supply of absorbent granules or pads to be provided on site to prevent the spread of any spillage.
Portable fire extinguisher of the correct type on site.
Flammable substances not to be used within 1 meter of hot surfaces.
Reactivity Hazards
Explosion
Do not handle explosive materials/substances unless properly trained
Keep away from explosives and notify supervisor immediately
Keep chemicals away from open flame
All MSDS are available at the workplace.
Control measures are selected and used. Selection is according to the Hierarchy of Control - elimination,
substitution, enclosure, ventilation, work design, personal protective equipment.
General and local exhaust ventilation functioning and effective
Exposures and work areas are monitored, and health surveillance carried out as appropriate.
Ensure that information, instruction and the appropriate training relative to the chemical is given to the work
party .
Specific monitoring may be required, depending on chemical type, usage and potential hazard
Information, instruction and training is given.
Train all personnel to be aware of reactivity hazards and incompatibilities and to know
maximum storage temperatures and quantities
Design storage and handling equipment with all compatible materials of construction
Avoid heating coils, space heaters, and all other heat sources for thermally sensitive materials

7. Avoid confinement when possible; otherwise, provide adequate emergency relief protection
Avoid the possibility of pumping a liquid reactive material against a closed or plugged line
Locate storage areas away from operating areas in secured and monitored locations
Monitor material and building temperatures where feasible with high temperature alarms
Clearly label and identify all reactive materials, and what must be avoided (e.g., heat, water)
Positively segregate and separate incompatible materials using dedicated equipment if possible
Use dedicated fittings and connections to avoid unloading a material to the wrong storage tank
Rotate inventories for materials that can degrade or react over time
Pay close attention to housekeeping and fire prevention around storage and handling areas
Some operations will need to be contained within special blast-resistant enclosures
Have an approved emergency response plan in place and conduct periodic drills if necessary
Carcinogens or Other Toxic
Compounds
Chemical Toxicity
Refer to MSDS and follow safety precautions as specified for chemical use
Store toxic chemicals in well ventilated area
Notify affected workers prior to releasing/venting toxic chemicals
Conduct gas testing to ensure that sufficient oxygen is available
Conduct gas testing as required to ensure toxic atmosphere not present (H2S, S02, CO)
A person, trained in the use of the selected monitoring instruments, must be present at all times
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Keep worksite free of trip hazards.
Check worksite for potential dropped objects.
Repeat gas tests required at specified intervals.
Hoses and burning/welding tools to be removed from confined spaces when worksite is unattended.
Hoses are not to be left covered by Fire Blanket when not in use so that any wear or damage is visible.
Gas bottles are NEVER to be taken in to the vessel.
Maintain radio contact with control room.
When gas welding or cutting in a vessel, torches to be removed when not in use.
If forced ventilation fails personnel must leave the confined space immediately.
Vessel entry Hole watch to confirm radio contact with AA or his designate.
Check that extraction/ventilation system is operational. If it fails stop work and leave the confined space
immediately.
Work to be undertaken by a minimum of two persons.

8. Continuous monitoring for toxic gas to be carried out during execution of work.
Portable Gas Detector to be at Worksite at all times.
Hoses must be isolated and depressurized when not in use or left unattended.
Extreme temperatures can impair performance and judgment. Regular breaks to be taken.
Confined space entry certificate required.
Rescue arrangements to be in place and rescue team to be briefed.
Entry Attendant to be in place at all times during entry.
Ensure correct PPE in good condition is used.
Oxygen check required before work commences.
Gas test required before work commences.
Temporary lighting to be provided at work place and escape routes.
Continuous monitoring for oxygen and toxic gas content to be carried out.
Emergency Response Group to be made aware of ongoing task and location.
Adequate access and egress is provided
Air moving equipment has been installed
Ensure natural ventilation is adequate
Check working environment is sufficiently cool
Check that the hole watch knows the location of nearest emergency equipment, and how to activate
emergency response.
Ensure all occupants are wearing required personal monitoring devices. Vacate the area immediately in event of
alarm and inform the Control Point.
Work to stop if oxygen level drops below 20% or monitor is not working.
On arrival at worksite, work party must establish contact with Entry Attendant.
Notify ERT Department of hazardous confined space entry
Develop formal rescue plan
Review rescue plan with Fire Chief
Provide Mechanical Retrieval Devise (Required for spaces greater that 5 feet in depth)
Continuous Monitoring Equipment required
Communication method to be communicated to all in work party (e.g. voice, sight, air-powered horn, radio,
other)
Ensure confined space has been cleaned before entry
Ensure confined space has been purged / ventilated before entry
Full body harness and retrieval line required
Outside observer required

9. Entry attendant required
Carry out pre-entry briefing on specific hazards and control methods
Approved ventilation plan to be used
PA to be present during CSE
Spill/Splash
Employee Contact
Location of nearest shower/eye wash to be identified
Establish emergency action/spill response instructions
Establish means to isolate/protect chemicals from the work and/or ignition source
Use rubber boots, gloves, protective clothing, face shields etc. to avoid exposure to body parts
Chemical Waste Handling
Ensure open drains are not used to drain or flush any hazardous substance
Use secondary containment to prevent spills while opening flanges, lines, vessels, tanks, etc.
Appropriate PPE to be worn (eye/face protection, welding hood, gloves, apron)
Determine waste handling and disposal methods and requirements for chemical products used
Check sealable containers are provided to contain waste materials for correct disposal
Check for neutralization spill kit available at site
Welding/Cutting
Personnel Exposure
Barriers, screens, guards and signs are to be erected
Respiratory protection to be worn when necessary
Welders gloves, goggles, and spatter proof clothing to be worn when required
Fire
Check that the worksite has a portable fire extinguisher available
Fire Watch to be appointed
Check flashback arrestor and non-return valve are fitted correctly before opening gas supply and lighting flame
Repeat gas tests required at specified intervals.
Beware of flammability of scaffold boards.
Firewatchers to check both sides of wall/work area before and during execution of work.
All drains with a water filled seal to be topped up prior to task commencing.
Deluge system operational and the means of manual initiation understood by all the work party.
Fire and smoke detectors to be inhibited.
Continuous gas monitoring in use at worksite (portable gas detector).

10. Receptacles for welding rods and used stubs to be provided.
Hoses are not to be left covered by Fire Blanket when not in use so that any wear or damage is visible.
Gas bottles are NEVER to be taken in to the vessel.
Hoses and burning/welding tools to be removed from confined spaces when worksite is unattended.
Ensure adequate ventilation exists.
Thickness/condition of work piece/area to be considered before work starts.
Equipment is either tied in to Facility Shutdown System or competent watchman present at all times.
When gas welding or cutting in a vessel, torches to be removed when not in use.
Extreme temperatures can impair performance and judgment. Regular breaks to be taken.
Welding machines and equipment to be located in non-hazardous areas and to be grounded.
Machine to be located so as not to block fire hydrants.
Check that a dedicated fire hose, pressurized to the nozzle is available.
Fire blanket to be used.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Check worksite for potential dropped objects.
Gas test required before work commences.
Ensure correct PPE in good condition is used.
Portable fire extinguisher of the correct type on site.
Fire Watcher to be in attendance at all times during any Hot Work.
Flammable and combustible material is to be removed from work surface and surrounding area.
Drains and gullies in area to be clear of all combustible material and protected with fire blankets (wetted if
necessary).
Equipment to be isolated when left unattended.
Hoses must be isolated and depressurized when not in use or left unattended.
Portable Gas Detector to be at Worksite at all times.
Check an authorized igniter is available to light torch.
Check flashback arrestor and non-return valve before opening gas supply and lighting flame.
Check that all air intakes that could be affected from the operation are protected from gas/fumes/air borne
particles, etc.
Gas bottles to have key attached to allow quick isolation.
Cables and hoses to be kept to minimum lengths, secured safely and kept away from ladders, walkways and wet
areas.
Worksite to be clear of Chemicals/materials which could react at high temperatures to provide toxic or
explosive fumes.

11. Where necessary, appropriate habitat to be erected before undertaking the work.
Plant/Equipment
All required isolation, blinding and purging of equipment has been carried out.
Gas testing has been carried out showing gas less than 10% (LEL) Gas detection devices or gas monitors are in
place.
Lock out/tag out in place.
All access ways and emergency escape routes are clear.
The worksite has been roped-off if necessary.
Automatic Fire Detection is disabled.
Available sprinklers, hose streams, and extinguishers are operable.
Equipment on which hot work will be carried out has been clearly marked by an authorized person.
Tools
Hot work equipment is in good repair.
Portable electrical power tools have a Ground Fault Circuit Interrupter (GFCI) located as close as practicable to
the tool itself.
Ground returns are coupled directly to the equipment being welded and to an independent ground. Ground
returns are not connected in such a way that the path is outside the area which has been inspected and
monitored for safe working.
No ground returns are connected to hydrocarbon piping.
Pressurized Enclosures (Flexible
Habitat)
Service provider personnel certified as competent in the use of the habitat.
Enclosure engineered and erected according to service providers procedures.
Enclosure is constructed of flexible material that allows for ease of exit at any point in case of an emergency.
All fire and gas monitoring devices properly calibrated and applicable to the testing required.
Emergency shutdown equipment in use.
Personnel required working within the enclosure briefed on their roles and responsibilities.
Proximity to
combustibles/flammables
Flammable liquids, dust, lint, and oil deposits removed.
Explosive atmosphere in area eliminated.
Floors swept clean of combustibles.
Combustible floors wet down, covered with damp sand or fire-resistant sheets.

12. Remove other combustibles where possible. Otherwise protect with fire-resistant tarpaulins or metal sheets.
All wall and floor openings covered.
Fire-resistant tarpaulins suspended beneath work. (Applicable to elevated work sites).
Ducts that may carry sparks to combustible or explosive materials are shut down, sealed and covered.
Construction is non-combustible and without combustible covering or insulation.
Combustibles on other side of walls moved away.
Danger exists by conduction of heat into another area.
Enclosed equipment cleaned of all combustibles.
Containers purged of flammable liquids/vapours.
Employee Contact
Goggles and face shields that give maximum eye protection for each welding, flame cutting and soldering
process to be worn by personnel performing these operations and helpers assisting in the hot work.
Flame resistant gloves and aprons to be worn during welding, flame cutting and soldering processes.
Protective hard hats be worn are made of a flame resistant material.
Safety shoes with protected tops to be worn to protect the operator from spark hazard.
Welding Arcs
Barriers, screens, guards and signs are to be erected
Appropriate PPE to be worn (eye/face protection, welding hood, gloves, apron)
Maintain appropriate distance from work area
Dust/Fumes
Inhalation Exposure
Barriers, screens, guards and signs are to be erected
Respiratory protection to be worn when necessary
Check that extraction/ventilation systems are operational
Exhaust fumes are assessed when applying the Hazardous Substances Assessment process
Exhausts from major rotating equipment (gas turbines etc) are ducted to a central flue for discharge well above
the working area of the installation.
Smaller exhausts are positioned away from working areas and from ventilation intakes.
If exhaust fumes are noted, measurements are made for combustion gases and particulate matter.
If exhaust fumes are impinging on worksite, measurements are made, and if necessary, work stopped until the
concentrations drop.
If exhaust fumes are being drawn into the accommodation, measurements are made, and if necessary, dampers
closed on the offending intakes.

13. Consideration to direction of fumes if work is to take place near exhaust points
Survey equipment and plant to reduce the potential for exhaust fume generation
Inspection of general and Local Exhaust Ventilation systems
Eye Contact
Location of nearest shower/eye wash to be identified
Barriers, screens, guards and signs are to be erected
Check that extraction/ventilation systems are operational
Batteries
Explosion and/or Off-gassing
Appropriate PPE should be worn when maintaining batteries (protective clothing, gloves, eye and face
protection)
Batteries to be stored and charged per manufacturer recommendations
Batteries to be inspected before use
Hydrocarbons
Hydrocarbons
Ensure adequate ventilation exists.
Flammable substances not to be used within 1 meter of hot surfaces.
Heat Trace Circuit to be isolated prior to start of task.
Check sealable containers are provided to contain solid residue for disposal via the approved waste disposal
route.
Supply of absorbent granules or pads to be provided on site to prevent the spread of any spillage.
Ensure discharges from hydrocarbon bleeds and vents are safely routed.
Drip trays to be in place around equipment being worked on.
Closed drains to be checked prior to draining down vessels to ensure there are no blockages.
When breaking into any Hydrocarbon system, ensure contents don't enter any open drain system.
Hoses to be checked and in good condition.
Provide a physical barrier to protect process equipment.
AA must authorize movement between hazardous/non-hazardous areas of equipment contaminated with
Hydrocarbons.
Waste to be handled and disposed of in accordance with Hazardous Substances Assessment.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Communicate with all those potentially effected.
Communicate with adjacent Performing Authorities.
Ensure correct PPE in good condition is used.(RA team to specify PPE)

14. Portable Gas Detector to be at Worksite at all times.
Isolating Authority Process to be in attendance when breaking containment.
No Hot Work or intrusive electrical work in area.
Where necessary, appropriate habitat to be erected before undertaking the work.
PA to inform AA prior to initial breaching activity
IAP to be present when breaking first flange
Special care to be taken to avoid trapping hydrocarbons at drain points and "dead legs" or low points.
Energy isolation procedure completed, LTT Certificate and breaking containment permit in place.
System purged to <7.5% vol Hydrocarbon gas
Integrity test completed
4. Electrical
Power Lines/ Transformers
Electrocution/Shock
Remove conductive clothing and accessories (watch, rings, necklace, earrings, etc.)
Maintain arc and shock protection boundaries
Use proper PPE (non-conductive gloves, body & face protection) and insulated tools
Keep 10 feet away from power lines
Ensure correct PPE in good condition is used.
Mobile cranes, vehicle mounted access equipment, to be lowered and secured into transit position during
transit.
If practicable, electrical cables to be de-energized and piping systems isolated and de-pressurized.
Approved access and egress routes which are to be protected by netting slung under the cables.
Metal ladders and scaffolding not permitted in the vicinity of live overhead lines.
Check that a vehicle route has been specified. Vehicles are to follow and not deviate from the specified route.
No passage under overhead cables when work in progress except at approved access and egress routes.
The safe clearance required beneath the overhead lines should be found by contacting the Maintenance
Electrical Authority (internal) & TTEC (external)
Vehicles, plant, machinery, equipment, or materials that could reach beyond the safe clearance distance should
not be taken near the line;
Vehicles such as cranes, excavators and tele-handlers should be modified by the addition of suitable physical
restraints so that they cannot reach beyond the safe clearance distances, measures should be put in place to
ensure these restraints are effective and cannot be altered or tampered with;

15. Operators of high machinery should be instructed not carry out any work on top of the machinery near
overhead power lines;
Access for plant and materials and the working of plant should be under the direct supervision of a suitable
person appointed to ensure that safety precautions are observed.
High Voltage Systems
High Voltage Systems
Ensure correct PPE in good condition is used.
Rubber gloves rated for the appropriate electrical voltage to be available and used when required.
Alternative means of providing emergency power or lighting to be arranged.
Check that an insulating mat is available for persons to stand on.
Electrical cables to be taken off drum and loosely coiled to avoid overheating.
Equipment to be proved discharged and electrically dead before any work proceeds.
Check insulated hook is available at worksite.
Ensure electrical extension cords are correctly rated for supply of portable equipment.
Electrical grounding devices to be in place.
Alternative power supplies have been provided where necessary.
Only insulated tools to be used.
No Electrical Enclosure, containing live connections, to be left open and unattended.
Heat Trace Circuit to be isolated prior to start of task.
Cables to be in good condition and well protected.
All non-certified electrical equipment to be inspected by competent Electrical person.
All tools and equipment to be examined before use and defective equipment. replaced or repaired immediately.
For work with an electrical content or electrical hazard, the Maintenance Electrical Authority must countersign
the HV Certificate prior to issue.
Check the electrical conductivity of hoses, equipment and lances, to ensure that they are electrically grounded.
Test the ground with suitable test equipment before job starts. Scaffolding is also to be grounded.
The effect or potential for arcing to be taken into consideration.
Where extension leads are used, connections should be suitable for the area classification.
Energized Tools & Equipment
Electrocution/Shock
Equipment to be isolated and earthed
Confirm equipment is discharged and electrically dead before any work may proceed

16. Remove conductive clothing and accessories (watch, rings, necklace, earrings, etc.)
Barriers, screens, guards and signs are to be erected
Keep cords away from sharp objects, heat, oil, and solvents that can damage insulation
Rubber gloves rated for the appropriate electrical voltage to be available and used when required
Defects
Check all non-certified electrical equipment is tagged and removed from use
All tools and equipment to be inspected before use and defects rectified immediately
Wiring
Overheating
Use rated cables to avoid excess heating
Inspect cord connectors, receptacles, cord and plug connected equipment for damages and defects
Fully unspool extension cords that are on a reel
Electrical Spark Potential
Where flammable atmosphere may exist, gas testing is to be carried out before start of work
Ensure that electrical cables for the equipment are without splice and are of sufficient length that extension
leads are not needed
Check at the worksite that a portable fire extinguisher is available
Static Charges
Electrocution/Shock
Ground materials, vessels and pipes prior to work
Ensure correct PPE in good condition is used.
No Electrical Enclosure, containing live connections, to be left open and unattended.
Alternative control facilities to be in place on affected equipment.
Anti static wrist strap to be worn.
Check the electrical conductivity of hoses, equipment and lances, to ensure that they are electrically grounded.
Test the ground with suitable test equipment before job starts. Scaffolding is also to be grounded.
Check equipment is isolated and grounded.
No Electrical Enclosure, containing live connections, to be left open and unattended.
Emergency Situations
Where flammable atmosphere may exist, gas testing is to be carried out before start of work
Lightning
Electrocution/Shock
Suspend work and/or lifting activities

17. Emergency Situations
Where flammable atmosphere may exist, gas testing is to be carried out before start of work
5. Gravity
Body Tripping or Falling
Person Fall from Height
Harness or other means of fall protection/prevention must be used by all persons working from ladders or
above 1.8 meters (6 ft)
Ensure potential fall path is free of obstacles or other hazards
Ensure the roof can withstand the weight of workers and equipment
Do not extend body or part of body out of the ladder axis or handrails (scaffolds)
Face the ladder when ascending or descending
Maintain 3 point contact with ladder at all times
Identify obstructions, open areas, fragile surfaces or holes on the roof or elevated walking surfaces and clear
obstructions to the extent possible
Ensure no person is on a load being lifted
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Check that for work on roofs with pitches greater than 50 deg., or on curved roofs, scaffold platforms are
provided.
Check that no work is in progress underneath the roof whilst the overhead operation is in progress.
Check that roof edges are fitted with guard rails.
Check worksite for potential dropped objects.
Crawler boards to be used on fragile roof coverings.
Use fall arrest equipment.
Ensure correct PPE in good condition is used.
Extreme temperatures can impair performance and judgment. Regular breaks to be taken.
Means of recovering a person from a fall arrestor line/harness to be available.
Full body harness using double latch self locking snap hooks at each connection to be worn.
Inertia reel to be used.
Keep worksite free of trip hazards.
Ladders to be lashed and angled at 75 degrees.
Communicate with adjacent Performing Authorities.
Communicate with all those potentially effected.
Personnel are to be made aware of radiant heat from flare and/or turbine exhausts.

18. Proper anchor to be mounted, preferably overhead.
Rescue plan has been discussed with the work party.
Rescue retrieval tool on site.
Safety harness to be worn.
Safety harness with fall arrestor attached to an anchor point on main structure to be worn.
Secure loose objects.
Should communication be lost then operation must stop until communication is restored.
Work at height to stop when wind direction from flare / turbine exhaust is towards worksite or if there is a
probability of a lightning strike.
Work at height, over side or rope access work in exposed areas is to stop when mean wind speeds are
excessive.
Work may only be carried out from on designated areas of roofs.
Work to be undertaken by a minimum of two persons.
Plan to minimize period suspended by harness in event of incident.
Ensure there is a safe place of work which is guarded on all sides where a person could fall more than 2m.
If working over open gratings, decks below to be barred off
Slips, Trips or Falls
Ensure good housekeeping standards are maintained at all times
Position barriers/screens/warning signs around equipment
Flooring shall be slip resistant
Spills and accumulations of fluids to be cleared up periodically
Steps and Stairs shall have the same size and vertical lift
Do not lay loose cables on the ground
Ensure good housekeeping standards are maintained at all times
Position barriers/screens/warning signs around equipment
Flooring shall be slip resistant
Spills and accumulations of fluids to be cleared up periodically
Steps and Stairs shall have the same size and vertical lift
Do not lay loose cables on the ground
Ladders/ Scaffolds
Ladders should extend 3 ft above the edge of the excavation or landing elevation
Maintain 3 point contact with ladder at all times
Face the ladder when ascending or descending

19. Use Ladders on level surfaces with legs fully extended and locked
Do not place ladders in front of unlocked doors
Never move a ladder when someone is on it
Do not use ladders on top of scaffolds to increase the height
Do not place ladder on unstable bases to obtain additional height
Ground or support structure in stable condition, no loose soil, ground levelled
Maintain the proper angle for ladder use - place the base a distance from the vertical wall equal to 1/4 the
working length of the ladder
Do not extend body or part of body out of the ladder axis or handrails (scaffolds)
Protect scaffold from vertical tipping (if height is 4 times greater than the base) by securing the scaffolding
Ensure scaffold tied, guyed or supported
Communicate scaffold load capacity/limits to scaffold user(s)
Scaffolding to be erected/moved/dismantled under the supervision of scaffold supervisor
Provide bracing (horizontal/cross/diagonal) for securing vertical members
Planks used on scaffold should be free of any crack/cut/warp/gap, and properly fixed or extend 6-12 inches at
their ends
Objects
Fall/Drop from Height
Make sure no one is working under scaffolding
Never Place hands below suspended loads
Ensure good housekeeping standards are maintained at all times
Determine adequate protection for workers from loose and falling rock along the excavation face
Ensure no person is on the load being lifted
Erect toe board/screen/guard rail if debris or loose materials are likely to fall
Secure tools and equipment to avoid the risk of objects being dropped
Ensure the area above the work site is secured from falling materials
Do not carry tools in hand while ascending or descending a ladder. Use tool pouch strapped behind
Load cargo properly to avoid falling. Secure unstable loads as needed
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Communicate with all those potentially effected.
Check worksite for potential dropped objects.
Secure loose objects.
Secure tools and equipment to avoid the risk of objects being dropped.
Safety nets to be replaced after lifting and hoisting activities.

20. Any incident which causes damage must be reported to the Performing Authority.
Proceed with caution near mechanical equipment, electrical switchgear, instruments and small bore pipework.
Ensure correct PPE in good condition is used.
A Lifting Plan/Method Statement must be in place.
All areas above and below the worksite are to be inspected to minimize the probability of objects falling onto or
from the worksite.
If working over open gratings, tarpaulin to be spread below work site to prevent small items dropping through
gratings
Rigging & Lifting
A Lifting Plan/Method Statement must be in place.
Lifting equipment to be in compliance with Regulatory requirements and by company standards.
Process equipment is not to be used for hand/foot holds or for supporting lifting gear or scaffolding.
Lifting arrangements to be visually checked, including above and below lift for obstructions and interference,
before full lift.
If mobile equipment used ensure approach & work area are level & ground is free of obstructions.
Ensure lifting equipment is appropriately certified and visually inspected prior to use.
Check Runway Lifting Beam End Stops are in position and secured correctly
Equipment to be proved discharged and electrically dead before any work may proceed.
Depressurize equipment adjacent to or below lift.
Provide a physical barrier to protect process equipment.
Lift to be positioned such that working directly underneath the lift is minimized.
Lifting Team to control lifting, movement and setting down of the load by hand or radio communications.
Operation of lifts to be checked by lowering them empty down to the next lowest level and returned.
Process equipment is not to be used for hand/foot holds or for supporting lifting gear or scaffolding.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Lifting equipment to be in compliance with Regulatory requirements and by TC standards.
A Rigger must be present and in charge of the lifting operation.
Ensure correct PPE in good condition is used.
Lifting operations are not to take place over live plant.
Lifting arrangements to be visually checked, including above and below lift for obstructions and interference,
before full lift.
If lift door/lift position interlock system over-ridden during work, return to normal and function test on
completion .

21. Check that slings to be spaced and attached in accordance with relevant regulations / bp TC standards
Clear, concise instructions for raising, lowering and stopping the winch must be established and understood.
Ensure the proposed laydown area can support the load in terms of size and weight.
A Lifting Plan/Method Statement must be in place.
Prior to use, all equipment involved in man-riding operations is to be checked, and tested where required, by a
competent person.
Excavation
Collapse/Cave-in
Conduct soil test to determine soil type
Shore or brace adjoining structures to prevent shifting/collapse
Inspect excavation and adjacent areas at least once a day for possible cave-ins
Keep heavy equipment away from edge of excavation
Ensure the roof can withstand the weight of workers and equipment
Do not work in excavations with water accumulation or when raining
Keep soil piles at least 3 feet from the edge of excavations
Ensure that vibration from compaction activities, equipment operations, nearby traffic does not pose cave-in
hazard
If mobile equipment used ensure it is located a safe, predetermined distance from excavation.
Location of underground services to be established. Stop on discovery of unexpected cabling or pipework.
If mobile equipment used ensure approach & work area are level & ground is free of obstructions.
If mobile equipment used ensure bases are properly supported, outriggers extended & vehicle position secure
If practicable, electrical cables to be de-energized and piping systems isolated and de-pressurized.
Drawing/sketch to be produced and approved
Pilot trench to be hand dug to an agreed specified depth
Prior to issue, AA to ensure following disciplines have countersigned to confirm services are not present
Shoring only to be erected, modified or dismantled under the direct supervision of fully experienced and
competent personnel
The location of underground services to be established prior to excavation
Where lighting is poor, flashing warning lights are to be deployed around the barrier
Install hard barricades and signs around excavation. Barriers to be removed as soon as possible when safe to do
so.

22. 6. Mechanical
Rotating Equipment
Pinch Points
Do not operate machines/equipment without proper safety guards in place
Check safety guards are fitted to rotating shafts and discs
Barriers, screens, guards and signs are to be erected
Machine to be in view when started
Ensure work force is aware of emergency stop buttons
Never Place hands near, on or into moving parts
Control loose clothing, gloves, jewellery, long hair
Use proper tools for replacing rotating equipment belts to avoid pinch points
Equipment to be de-energized/ de-pressurized when not in use and before carrying out any maintenance
Tools & Equipment
Vibration
Avoid long exposure to soil compacting machines. Operate the machine with sufficient breaks
Do not use high vibration tools longer than the maximum exposure time
Pinch Points
Do not use tools/equipment without proper safety guards
Barriers, screens, guards and signs are to be erected
Use proper tools for replacing rotating equipment belts to avoid pinch points
Identify tool path of movement and keep hands out of path
Defects
All tools and equipment to be examined daily/ before use and defects rectified immediately
Equipment to be de-energized/ de-pressurized when not in use and before carrying out any maintenance
Conveyors, Motors, Drive Belts
Pinch Points
Barriers, screens, guards and signs are to be erected
Use proper tools for replacing rotating equipment belts to avoid pinch points
Control loose clothing, gloves, jewellery, long hair
Do not operate machines/equipment without proper safety guards in place
Do not carryout repairs or maintenance when the system is working
Machine to be in view when started
All personnel should be clear of conveyor before starting

23. Defects
Do not operate the conveyor with loose or damaged belt
All equipment to be inspected as required and defects rectified
Stored Energy
Personal Contact
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Retaining fasteners not to be removed until flanges etc. broken and pipework proved free of residual pressure.
If status changes, system under test does not require depressurizing unless stated on WCC or instructed by
Operations.
Air to be vented from high points during filling.
System to be isolated, de-pressurized and Isolation Confirmation Certificate in place.
Approved spring compressor to be available and used to control release of spring pressure.
7. Pressure
Process Piping, Vessels and Tanks
Excess Pressure
Check blanks, spades and temporary fittings are rated to full test pressure
Barriers, screens, guards and signs are to be erected
The assembly of compression fittings only to be undertaken by competent persons
Tank levels to be checked before and during filling
Equipment to be checked/pressure tested to lowest rated component
Equipment being tested is not to be approached until reasonable time has elapsed and no leaks are visible
Do not stand in line with plugs or fittings which could potentially blow out
System to be isolated and depressurized prior to maintenance activities
Communicate with all those potentially effected.
Communicate with adjacent Performing Authorities.
Check blanks, blinds and temporary fittings are rated to full test pressure.
Equipment being tested is not to be approached until reasonable time has elapsed and no leaks are visible.
No overhead work or crane operations allowed over the area whilst test in progress.
Rate of depressurization to be controlled to ensure gas/air cap in vessel receives adequate make-up when
draining.

24. System to be isolated, de-pressurized and Isolation Confirmation Certificate in place.
Ensure that a calibrated gauge is visible to the operator controlling the process.
Check that two recently calibrated test gauges are fitted, one close to supply source and one close to a relief
valve.
When emptying system after test, be aware of possibility of drawing a vacuum.
Weight restrictions of supports for vessels and pipework are not exceeded when filled for hydro test.
The pump used to raise the test pressure has a relief valve set below the maximum design pressure of the
system.
Air to be vented from high points during filling.
If water from the Fire Main is to be used to fill the system, obtain AA/Control Room approval.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Ensure correct PPE in good condition is used.
Personnel not directly involved to be cleared from test area before test commences.
Relief valve discharge paths to be directed so that they do not endanger plant and personnel if the relief valve
lifts.
System is not to be shock loaded. Tightening, slackening or hammering of any item under pressure is prohibited.
If Facility status changes, the system under test does not require depressurizing unless this is stated on the
Permit or instructed by Operations.
Test pump must be stopped before being left unattended.
Check that the fail safe valve is fully functional.
Instruments and sensing lines not capable of withstanding full test pressure are removed and blanked.
Pressure Relief
Do not stand in line with plugs or fittings which could potentially blow out
Check blanks, spades and temporary fittings are rated to full test pressure
System to be isolated and depressurized prior to maintenance activities
Closed drains to be checked prior to draining down vessels to ensure the system can handle the expected
volumes
Relief valve discharge paths to be directed so that they do not endanger plant and personnel if the relief valve
lifts
Relief valves and vents to be inspected
Pneumatic and Hydraulic
Equipment
Pressure Release
Equipment to be de-energized/ de-pressurized when not in use and before carrying out any maintenance

25. Pneumatic and Hydraulic lines to be controlled (i.e. whip check)
Hydro Blasting
Items to be cleaned/blasted in a designated area
Barriers, screens, guards and signs are to be erected
Check that adjacent equipment is protected from accidental damage
Additional suitably rated hearing protection to be worn where specified.
Area above and below to be assessed for impact of spray/falling water.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Correct PPE to be worn as specified in SWP for hydro blasting (minimum requirements up to 1600 psig-
Coveralls, Raincoat, Full face visor, helmet, Hearing protection, Steel toed knee high boots)
Correct PPE to be worn as specified in SWP for hydro blasting (minimum requirements up to 2500 psig-
Coveralls, Raincoat, Full face visor, helmet, Hearing protection, Steel toed knee high boots, Metatarsal boots
with gaiters)
Correct PPE to be worn as specified in SWP for hydro blasting (minimum requirements for HP and UHP
applications- Garments made from coated polyamide (water resistant) over multilayer synthetic fibres (often
referred to as UHP suits and typically a hinged composite panel system made from a tight weave of Kevlar).
They must not be reissued to others without proper cleaning and visual inspection.
Use of the Hydro blasting Operation pre-start checklist
Competent watchman present at all times.
Hoses must be isolated and depressurized when not in use or left unattended.
Items to be cleaned/blasted in a designated area if possible.
Communicate with adjacent Performing Authorities.
Whip checks to be fitted to all hose joints
Use safe manual handling techniques.
Thickness/condition of work piece/area to be considered before work starts.
Pre-determined hand signals to be used if noise will hamper communications.
No intrusive maintenance to be ongoing in vicinity.
Communicate with all those potentially effected.
Machine to be located so as not to block fire hydrants.
Jet not to be pointed at anyone - even if switched off, and no-one permitted to pass in front.
Isolate and de-energize/de-pressurize when not in use and stow safely.
Hoses are not to be kinked during operation.
Ensure correct PPE in good condition is used.
Check that adjacent equipment is protected from accidental damage.

26. All tools and equipment to be examined before use and defective equipment. replaced or repaired immediately.
Anyone struck by a high pressure jet on the skin must seek medical attention even if no apparent wound is
visible.
Rubber gloves and boots with upper foot protection, face shields and suitable coveralls to be worn by work
party
Equipment is not to be operated greater than 5000 psi
Whip checks to be fitted at each connection.
Specialist contractor procedures to be complied with and cross-referenced on the permit
PPE to the standard specified in specialist company operating procedures to be worn
Operation to be carried out by competent specialist contractors only
All Hydro Blasting equipment must meet the technical specifications for its intended service and must be
inspected as per requirements.
Communication method to be selected by RA team and communicated to all in work party (e.g. voice, sight, air-
powered horn, radio, other)
Ensure that the hydro blasting equipment has a means to either dump or shut-off the system.
All equipment, including pump, hoses and accessories such as hand or foot guns are to be operated at or below
the manufacturer’s recommended working pressure
Warning signs and banner tape should be posted around work area
Check condition of all high-pressure threads. Do not use PTFE tape on pipe threads. Tighten all connections per
manufacturer’s recommended specifications.
Prior to blasting operate pump at low speed to flush debris from system before attaching nozzle
Do not direct hydro blasting at any person, towards your body or any electrical equipment
Employ a minimum of two operators in jetting operations. Primary operator must have control of water
pressure while second operator observes at a safe distance. To assure safety, secondary operator should use a
foot control connected in series with the primary operator’s gun to instantly relieve pressure if necessary. In
multi-gun service, operators should never blast within 30 feet of each other.
Work area should be clear and clean for good visibility and footing
Fall protection should be used when blasting on scaffolding, sloping or slippery surfaces, and a safety harness
should be used on elevated work surfaces
Use fittings, accessories, hose and related items rated for the Maximum allowable working pressure
Ensure that Units are not operated above the manufacturer’s MAWP
For hand held guns use a Hand Grip and Shoulder Stock for better control

27. Keep control gun trigger in open (dump) or closed (shut-off) position when not cleaning. Never tie or wedge
trigger in the blast mode
Discharge nipple (gun barrel) should be sufficiently long to keep hydro blasting away from operator’s feet when
surface cleaning with a hand gun
Do not modify guns. Always use hand-operated guns ONLY with hands
Electric gun control cable and switches MUST be intrinsically safe
Do not use lances which are kinked, abraded, damaged, or do not have pressure rating legible on the jacket.
Ensure that the hydro blasting procedure to be used for the activity has met the requirements
Always use three operators for support and safe operation of a rigid lance. Primary operator must use a foot
control valve and observe secondary operator who moves the lance in and out
Protect high pressure hose from objects that can cut, abrade, kink or otherwise damage it.
Hoses should have a minimum 2.5:1 pressure safety factor.
The hydro blasting system should include primary and secondary pressure relief protection
Ensure that the Hydro blasting operation pre start checklist is used (see SWP)
Use only products intended for high-pressure hydro blasting.
Never operate hydro blasting equipment without a means to either dump or shut-off system.
Do not alter equipment. Equipment should be used only as intended.
Use only clean fresh water.
Use minimum pressure required for cleaning. All equipment, including pump, hoses and accessories such as
hand or foot guns are to be operated at or below the manufacturer’s recommended working pressure.
Warning signs and banner tape should be posted around work area.
Check condition of all high-pressure threads. Do not use PTFE tape on pipe threads.
Tighten all connections per manufacturer’s recommended specifications.
Prior to blasting, operate pump at low speed to flush debris from system before attaching nozzle.
Operate system at low pressure (under 500 PSIG). Stop pump and relieve all pressure if adjustments need to be
made. If working properly, slowly increase speed until operating pressure is reached.
Do not direct hydro blasting at any person, towards your body or any electrical equipment.
All operators must wear proper safety apparel as outlined by this document.
Employ a minimum of two operators in jetting operations. Primary operator must have control of water
pressure while second operator observes at a safe distance. To assure safety, secondary operator should use a
foot control connected in series with the primary operator’s gun to instantly relieve pressure if necessary. In
multi-gun service, operators should never blast within 30 feet of each other.
Work area should be clear and clean for good visibility and footing.

28. Fall protection should be used when blasting on scaffolding, sloping or slippery surfaces, and a safety harness
should be used on elevated work surfaces.
If a malfunction occurs, immediately stop all blasting activity and relieve system pressure. Follow
manufacturer’s repair instructions.
Only trained personnel should perform maintenance or repair.
To ensure protection and safety, store all equipment properly and keep warning tags and markers intact.
Hydro blasting lacerations can induce air into the bloodstream. In case of accident, seek immediate medical
attention. Advise medical personnel of the nature of the injury according to Incident Reporting procedure.
Use fittings, accessories, hose and related items rated for the MAWP.
Units shall not be operated above the manufacturer’s MAWP.
Do not use any damaged items; inspect condition of all parts prior to use.
Never operate equipment without a control valve that can be used to reduce operating pressure to safe levels.
For hand held guns use a Hand Grip and Shoulder Stock for better control.
Check gun control mechanism (moving parts such as trigger, trigger lock, etc.) for proper mechanical operation
before use.
Keep control gun trigger in open (dump) or closed (shut-off) position when not cleaning. Never tie or wedge
trigger in the blast mode.
Discharge nipple (gun barrel) should be sufficiently long to keep hydro blasting away from operator’s feet when
surface cleaning with a hand gun.
Do not modify guns. Always use hand-operated guns ONLY with hands.
Electric gun control cable and switches MUST be intrinsically safe.
Always brace for gun recoil.
If dump water is returned to the pump, it must be through a significantly larger diameter hose than the high
pressure supply; its length must be kept to a minimum to eliminate dangerous back pressure.
Keep gun free of debris to avoid malfunction of the control mechanism.
Use an appropriate hand or foot gun to control flow of high-pressure water from pump to nozzle.
Inspect all high pressure components for corrosion, erosion or other damage prior to use.
To allow unrestricted back flow of spent water and debris, there must be sufficient clearance between lance
and tube.
Do not use lances which are kinked, abraded, damaged, or do not have pressure rating legible on the jacket.

29. The nozzle must be inserted into the tube, pipe or conduit before pressurizing. The pressure must be dumped or
shut off before it is removed from the tube. Be aware that serious injury could occur if a pressurized nozzle
leaves the tube. Always maintain a safe distance from exit point of lance.
Flexible lances should only be used with appropriate factory designed lance nozzles.
Do not force lance through blockage in the tube, pipe or conduit that is being cleaned.
Do not stretch or strain lance.
Drain all water from the lance and then coil it for storage until the next job.
To allow unrestricted backflow of spent water and debris, there must be sufficient clearance between lance and
tube.
Check nozzle, lance, and adapter thread sizes before tightening. Threads must be compatible – size, thread
pitch, LH or RH.
Lance adapter with thread reinforcement must be used at hose attachment end.
The nozzle must be inserted into the tube, pipe or conduit before pressurizing. The pressure must be dumped or
shut-off before it is removed from the tube. Be aware that serious injury could occur if a pressurized nozzle
leaves the tube. Always maintain a safe distance from exit point of lance.
Always use two operators for support and safe operation of a rigid lance. Primary operator must use a foot
control valve and observe secondary operator who moves the lance in and out.
Support lance properly to avoid stress and possible damage to the inlet connection when moving or handling a
lance.
Do not force or push lance into a blocked tube, pipe or conduit. Do not use lance as a probe or pry bar.
Properly store lances in tubes or racks to avoid bending or kinking. Do not use a lance which has been bent,
kinked, has excessive wrench marks or damaged threads.
Rigid lances should have at least a minimum 2.5:1 pressure safety factor.
Nozzle flow ratings must be compatible with pump discharge and pump pressure rating.
Check nozzle to verify that ALL orifices are completely clear before installation.
Use wrench flats if available and an open ended wrench for tightening nozzles. Do not over-tighten.
Special nozzles that require a locking pin must have pin installed before use.
Do not use nozzle if it is damaged, if the sidewall shows evidence of wear that has reduced wall thickness or
there is any doubt about its’ pressure holding integrity.
Protect high pressure hose from objects that can cut, abrade, kink or otherwise damage it.
Use wrenches when tightening threaded connections. Always use two wrenches.
Do not try to repair or re-couple any hose with a damaged end fitting.
Discard defective hoses
Properly disconnect, drain, coil, and store hose after each use.

30. A hydro blasting system should include primary and secondary pressure relief protection: Primary protection -
spring loaded relief valve set at 1.25 X MAWP (i.e. relief valve is set at 12,500 PSIG if MAWP is 10,000 PSIG).
Secondary protection - rupture disc assembly with a certified disc rated at 1.5 X MAWP.
Test relief valves for function and set pressure accuracy at regular scheduled intervals.
Only use certified rupture discs in the holder; other objects MUST NEVER be used as a replacement for the
rupture disc.
All relief devices must be tagged with the set pressure. Do not install a relief device if the set pressure is not
known.
Shut-off valves should never be installed between the pump and relief devices.
If a relief valve is leaking, do not increase spring compression. Refer to manufacturer’s instructions.
Never install a relief device in a way that could endanger operators.
Pressure relief valves MUST not be used as both a relief and throttling device.
Pressure relief devices must be properly adjusted and maintained to protect operators and equipment from
dangerous over pressurization.
Only use fittings manufactured for high-pressure hydro blasting service; verify that they are rated for the
MAWP. Do not use brass or cast iron fittings for high pressure service.
Use wrenches to tighten fittings.
Do not use fittings that are damaged, eroded or corroded.
Genuine replacement components be used to make all repairs. It is the responsibility of the party making
repairs to ensure that all parts meet the criteria of form, fit and function of the original item.
Maintenance and repairs should only be done by trained personnel.
Follow manufacturer’s recommendations and repair instructions.
During maintenance, inspect close tolerance parts for wear. Replace as necessary.
Do not try to install a part with suspect dimensions or clearances.
Grit blasting
Thickness/condition of work piece/area to be considered before work starts.
Use safe manual handling techniques.
Portable fire extinguisher of the correct type on site.
Check conductivity of hoses, equipment and lances ensure electrically grounded.
Hoses must be isolated and depressurized when not in use or left unattended.
Ensure correct PPE in good condition is used.
Gas test required before work commences.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
Portable Gas Detector to be at Worksite at all times.

31. Only closed circuit blasting is allowed in hazardous areas, Check that no operations that might release
hydrocarbons are taking place.
Defects
Pneumatic and Hydraulic equipment and lines to be inspected for defects
Diving
Pressure Release
Use soap solution to check gas leak from cylinders
Store and transport pressurized gas cylinders with caps in place to avoid leak
Secure pressurized gas cylinders when in use
Flashback
Ensure cylinders are fitted with flashback arrestors
Defects
Check the condition of the compressed gas cylinders for damage including pressure test date
All cylinders to be fitted with valve protection caps.
During work breaks, gas cylinder and hose valves to be closed and hoses depressurized.
Gas cylinders to be returned to specified area when empty.
Gas cylinders are to be secured in upright position in well-ventilated area and protected from direct heat.
Ensure correct PPE in good condition is used.
Check flashback arrestor and non-return valve before opening gas supply and lighting flame.
Only properly designed transportation devices to be used for moving gas cylinders around the plant.
Drowning
Diving operations are carried out by experienced and expert contractors who employ professional divers of a
high standard.
Divers are selected to be physically fit, with no diseases likely to prejudice their safety.
Divers are given frequent medical examinations to predict incipient diving related health problems.
Diving equipment is rigorously maintained and checked.
A companion diver is always present.
8. Radiation
Lighting Issues
Poor Lighting
Ensure light is adequate and provide additional lighting when required
Ensure walkways and aisles are well lit

32. Obtain the proper intrinsically safe lighting equipment to enable employees to see well enough to work safely
and to exit the space quickly in an emergency
Lighting to be provided at work place & escape routes
Work areas are designed to CIBSE illumination standards.
Offices are designed with as much glass as possible to allow natural daylight to penetrate to inside offices.
The display screen equipment assessment considers lighting level and glare as part of the assessment.
Allow time for visual inspections when completing tasks
Alternative means of providing emergency power or lighting to be arranged.
Ionizing and Non-Ionizing
Radiation
Solar Rays, Microwaves, Lasers, and
X-Rays
Barriers, screens, guards and signs are to be erected
Wear appropriate PPE (sunscreen, hats, UV protected glasses, lead apron)
Microwave ovens have cut-outs and are tested regularly for leakage using microwave monitor.
Exposure standard is 10 mill watts per m2. > 1 mw per m2 measured around seal of microwave or 100watts
continuously suggests it requires attention
Expectant mothers are advised of the remote but potential risks from microwaves
NORM
Barriers, screens, guards and signs are to be erected
Wear appropriate PPE (impermeable gloves, protective clothing, respirator, head/eye/face protection,
bandages over open cuts/sores )
No eating, drinking, smoking, dipping or any other ingestive activities
Contaminated equipment and scale/waste to be handled, transported, and disposed of in accordance with
procedure
Any scale or deposit suspected of being NORM is tested with a scintillation counter before work begins. If the
scale or deposit is radioactive, procedures are put into place.
Large scale NORM work, such as separator cleaning, is carried out by specialist contractors.
An LSA Working Area is barred off and entry controlled and supervised
Disposable suits and, where necessary, respiratory protective equipment are worn.
Local Rules and procedures are developed and followed.
Workers are decontaminated and monitored after work.
Should communication be lost then operation must stop until communication is restored.

33. Check that a suitable radiation monitor is provided.
Immediately prior to exposing the source, an audible warning shall be given using air horns or other appropriate
means.
Radioactive source log book to be completed.
Ensure correct PPE in good condition is used.
Barriers and signs are to be erected. Barriers to be removed as soon as possible when safe to do so.
First entry into the vessel shall be made by a suitably competent person, and radioactivity to be monitored.
Check that any nucleonic process monitoring equipment is inhibited for the given worksite.
Adjacent areas are to be cleared of non-essential personnel.
Source must not be touched directly nor any part of the body be positioned between source and receiver.
All sources to be kept in a sealed source store with restricted access when not in use.
Radiation dose monitors/film badges to be worn by work party.
All tools and equipment to be examined before use and defective equipment. replaced or repaired immediately.
Check that warning lights are operating before leaving the worksite.
On change of status, radioactive source to be replaced in safe container, container locked and Emergency
Response Team informed that radioactive source is stowed and barriers can be disregarded.
Immediately prior to work starting, areas subject to control must be thoroughly searched to ensure that no
unauthorized persons are present
9. Sound
Equipment and Impact Noise
Hearing Loss
Wear appropriate PPE (ear protection)
Obey signage and noise barriers
Monitor noise level periodically to determine employee exposure
Effort is made to design out noise at source by specifying less noisy equipment.
Reduce noise transmission by introducing Engineering controls, e.g. absorbent screens, acoustic hoods, flexible
mountings etc.

34. Reduce exposure time by reviewing work practices, job rotation, segregation of workers from the noise source,
partial enclosures. Work practices are designed to keep people out of noisy areas as much as possible to reduce
exposure time.
Hearing protection is provided and hearing protection zones are marked, within which the use of hearing
protection is mandatory. Earmuffs and earplugs (disposable and custom molded) are used.
Information, instruction and training on the dangers of noise and the use of hearing protection are given.
Noise Reduction action plans in place
Accurate and diligent maintenance of records (including assessments of noise levels and doses, OSHA
requirements, calibration and maintenance of noise measuring equipment, issue of hearing protection)
Additional suitably rated hearing protection to be worn where specified.
Change out personnel in noisy areas to minimize exposure.
Alternative arrangements for signalling change of facility status or emergency situations to be in place.
Ensure correct PPE in good condition is used.
NC
Emergency Situations
Arrangements for signalling emergency situations to be in place
Ensure audible and visible alarms are in place where noise may impact communication in an emergency
Utilize visual communication where audio communication may be limited (i.e. helicopter operations)
Assign a qualified signal person for appropriate job tasks
10. Temperature
Ignition Source
Fire
Keep chemicals (flammable/combustible materials) away from open flame or other ignition source
Ensure Fire Watch is in place
Communicate emergency procedures
Appropriate PPE to be worn(protective clothing, eye/face protection, gloves)
Hot or Cold Surfaces, Liquids,
Gasses and Steam
Contact with Hot and Cold (Burns)

35. Hot surfaces to be covered with fire retardant material to protect personnel
Barriers, screens, guards and signs are to be erected
Appropriate PPE to be worn(protective clothing, eye/face protection, gloves)
General Environmental and
Weather Conditions
Extreme Outside Temperature
Stop work in weather such as high temperature or very cold conditions and assess conditions
Establish work/rest regimens
Provide water/fluids
Arrangements for signalling emergency situations to be in place
Weather appropriate clothing to be worn (gloves, coats, hats, boots, etc.)
For work in hot environments, the WBGT (wet bulb globe temperature) is measured and a work-rest regime
followed according to the ACGIH (American Conference of Governmental Industrial Hygienists) guidelines.
Oral rehydration fluid and salt tablets are made available in copious quantities.
Insulate hot surfaces and work areas
Provide cool air blowers