07. Portable Gas Detection Training_Eng.pptx

© 2014 Chevron USA Inc. All Rights Reserved Company Confidential
IBU MSW Portable Gas
Detection Standard

MSW Training & Competency Verification Standard
Requirement #2 and Written Test Requirements
 All IBU MSW training completion must be documented.
– Written tests are required.
– Results must be documented and retained per regulatory, Corporate and IBU
record retention requirements, whichever is greater.
 MSW Written Test (Post-Test) Requirement and Governance
– All MSW trainings shall be followed up with written test (post-test). Minimum 70%
score will be applied as the passing rate for the tests.
– Those who did not passed the test will be given an opportunity to take 1 (one) re-
test.
– If the person did not passed the re-test, coaching and mentoring sessions have to
be arranged to the personnel (either by MSW Coach or Contractor’s mentors).
– The person can be authorized to work upon completion of coaching or mentoring
sessions as planned and confirmed with a valid test results.
– All training implementation together with the test result have to be documented and
reported to OE/HES with the following report format: <link to MSW Training
Documentation>
2

MSW Training & Competency Verification Standard
Requirement #2 and Written Test Requirements
3

Outline
 Training objectives of Portable Gas Detection
 Introduction
 Scope
 Applicability/exemptions
 Requirements
 Portable Gas Detection Pathway
– Start
– Trained and confident
– Plan work
– Get permission
– Worksite Preparation
– Work
– Closeout
4

Training Objectives
Objectives
 Personnel are knowledgeable about the requirements of Portable Gas
Detection.
 Personnel can conduct, participate and evaluate portable gas detection, so
that it is performed without:
– Injuries
– Property damage
– Adverse environmental impact
 Personnel understand their role and responsibilities within the Portable Gas
Detection Standard.
5

Introduction
Gas Testing
 A process whereby the required gas tests are continuously or
intermittently monitored. Continuous or intermittent gas testing is
required when there is a likelihood of changing gas concentrations
and/or there is a high risk to workers if the gas concentration changes
unexpectedly.
 Use of portable detection equipment by the Qualified Gas Tester,
including detector tubes and combustible gas indicators, to determine
levels of oxygen and flammable or toxic vapors and gases.
6

Scope & Applicability
The Scope of Portable Gas Detection includes:
 U&G Chevron employees, their delegates and contractors
 Work activities requiring gas testing to ensure a safe work environment
– Confined space entries
– Excavations
– Hot work
– Other activities where there is a potential for a hazardous atmosphere
Applicability
 Occupational hygiene monitoring is not included in this standard.
7

General Requirements
 Gas testing is required when there is a potential for any hazardous
working atmosphere including oxygen deficient or enriched
environments, flammable/explosive, immediately dangerous to life or
health (IDLH) atmospheres, toxic atmospheres above permissible
exposure limits.
 Portable gas testing must be performed and evaluated by a Qualified
Gas Tester.
 Personnel assigned responsibilities in gas detection roles and workers
using personal gas monitors must be trained and competent.
8

Definitions
Hazardous Atmosphere
 An atmosphere that may expose workers to the risk of death,
incapacitation, impairment of ability to self rescue, injury or acute
illness from the following:
– Flammable gas, vapor or mist in excess of 10% of the lower explosive
limit (LEL).
– Airborne combustible dust at concentrations that meet or exceed its LEL.
– Atmospheric oxygen concentrations <19.5% or >23.5%.
– Atmospheric concentrations of any substance in excess of the permissible
limit.
– Atmospheric conditions immediately dangerous to life and health.
Immediately Dangerous to Life and Health (IDLH) Atmosphere
 An atmospheric concentration of any toxic, corrosive or asphyxiant
substance that poses an immediate threat to life or would interfere with
an individual’s ability to escape unaided from a dangerous atmosphere.
9

Roles and Responsibilities
 Subject Matter Expert
– Specific HES and technical
expertise related to the process
or procedure area identified
 High Level Chevron Manager
(e.g. facility mgr., operations mgr.
etc.)
– Approve high hazard potential
activities including hot tapping;
hot work while diving; use of
explosives while diving; diving in
enclosed/confined spaces; entry
into inert atmospheres
– Approve isolations that require
positive physical isolation where
positive physical isolation
cannot be reasonably achieved
– Approve work that cannot be
mitigated down to a medium or
low hazard likelihood and
severity in accordance with
Table 8 in the Upstream Hazard
Analysis Procedure
– Conduct MSW leadership
engagements
10

Roles and Responsibilities
 Qualified Gas Tester
– Knowledgeable about
acceptable atmospheric working
conditions and gas testing order
– Knowledgeable about gas
testing techniques (e.g., vessel
testing, stratified atmospheric
testing, etc.)
– Conducts and documents gas
tests
– Verifies and validates field tests
and calibrations of gas detection
equipment
– Understands when to stop work
11

STOP
Are you
trained and
confident?  What will you do
 Who and what will your work
affect
 Determine hazards and
mitigations
 Any special procedures
 Prepare permits and other
documentation
 Authorization
 Communications
 Ensure ongoing compliance with
Portable Gas Detection standard
 Equipment Field Verifications
 Conduct work site JSA (prep
crew for work)
 Gas Testing Requirements
 Gas Testing Equipment
 Inspections/Calibrations
 Perform work
 Stop work if conditions change
 Revalidate/cancel permit(s), if
necessary
 Close out permits and return to
point of origin
Portable Gas Detection Workflow
12
PLAN WORK
Miss something?
GET PERMISSION
VERIFICATION &
VALIDATION
CLOSE OUT
Miss something?
WORKSITE
PREPARATION
CONTINUAL IMPROVEMENT
Inspections, Reviews, Assessment,
Audits, Lessons Learned
Miss something?
WORK
Miss something?
START
 Consider impacts of work
 Review procedures, standards
and instructions

Start
13
START
 Consider impacts of work
 Review procedures,
standards and instructions
START

Start:
Consider Impacts of Work
Environmental
 Potential environmental impacts
 Potential for release of reportable
substances into the environment
(oil, gas, other material)
 Notification requirements (for gas
venting, material spillage due to
work)
Safety
 Rescue plans and equipment
required (does work require onsite
rescue equipment or rescue plan?)
 Notification requirements (for rescue
plans that involve outside
resources)
Health
 Potential health impacts due to
exposure of hazardous substances
(breaking into a line or vessel
containing hazardous materials)
– MSDS available
Equipment/Facility/Installation
 Impact of work to connected or
potentially affected equipment, facility
or installation
– What will shutting down equipment
impact?
– Will work generate long-term
impacts or changes?
– Will work require change
management?
14

Start:
Review
Regulatory/Statutory Standards Applicable to the Work
 Do the requirements specified in your written procedure meet these
requirements?
Chevron Standards
 Reporting unit/business unit/facility Portable Gas Detection standard
 Technical or engineering standards (e.g., Safety in Design, Fire Protection
and others)
 OE corporate-required standards
Accepted Best Practices
 Are there accepted best practices from recognized organizations that are
helpful?
15

Stop
16
STOP
Are you trained
and confident?

Trained and Confident
Task Specific Considerations
Do you…
 Know what your role is for the
task you are asked to do?
 Know what training is required
for the task you are asked to
do?
 Understand the scope of
the work?
Have you…
 Been trained for the task that
you are asked to do?
– Initial
– Refresher
Human Performance
Considerations
Do you…
 Have the tools, time, resources and
people to do the task?
 Know what performance mode you
are working in?
Have you…
 Considered potential error traps?
17

Trained and Confident
Actions for no or neutral answers
 Talk to your supervisor/work team
leader, discuss your concerns
and get directions on what you
should do
 Talk to other personnel experienced
in the job that you are asked to do
for guidance
 Review applicable written
documents such as standards,
operating procedures, training
materials and/or manuals
 Stop Work until you are confident
that you can do the job you are
asked to do
Upstream Standard Requirements
 Roles must be clearly defined
 Personnel must meet the training
and competency requirements
before starting work
Resources
 Portable Gas Detection Standard
 MSW Training and Competency
Verification Standard
18

Plan Work
19
 What will you do
 Who and what will your
work affect
 Determine hazards and
mitigations
 Any special procedures
PLAN WORK

Plan Work
What Will You Do
Define the scope of the task.
 Are there alternatives that could
provide a safer atmosphere?
 What equipment, tools and people
are needed?
– Identify equipment and tools you need
to do the work properly and safely
– Identify the number of people needed
for the work and what qualifications,
certifications, training and competency
needed to do the work properly and
safely
– Verify that the people you need to do
the work properly and safely are
available and are current with their
qualifications, certification, training
and competency assessments
 What special processes, people and
equipment are required?
– Inert atmosphere
– Ventilation
20

Plan Work
What Will You Do
 How much time do you need?
– Evaluate if the appropriate amount of
time has been allotted for the work.
– Develop alternate plans should the
work exceed the expected time.
 What other equipment or operations
will be impacted by this work?
– Evaluate the equipment and
operations that are potentially
impacted by work.
 Communication
– Consider how you will communicate
the work planned to those that should
know.
21

Plan Work:
Who and What Will Your Work Affect
Identify individuals and groups who may be impacted by the work.
Identify equipment, machinery, facilities and operations potentially impacted
by work.
Develop plans and procedures to ensure that work will affect impacted
equipment as little as reasonably possible.
22

Plan Work:
Determine Hazards and Mitigations
Conduct Planning Phase Hazard Analysis, if required
Trained personnel conduct a planning phase hazard analysis to identify the
potential hazards associated with a gas detection and to determine the
precautions, safeguards, and mitigations necessary to ensure that the work can
be done safely.
Hazardous energy sources commonly
associated with gas detection include:
 Chemical
 Biological
 Temperature
 Electrical
 Radiation
23

Plan Work:
Determine Hazards and Mitigations
Consider:
 Need for continuous monitoring
 Potential flammable or explosive
gases
 Toxic gases and vapors present (e.g..
H2S, Benzene)
 Work activity, location, duration of
work and work environment
 Obtaining access to or egress from
location
 Proximity to electrical conductors
 Condition and stability of the existing
work surfaces
 Ventilation and respiratory needs
 Equipment to be used and the
hazards associated with using it (e.g.,
monitoring instruments, respiratory
equipment, ventilation,)
 Hazards introduced by the use of
safeguards (e.g. explosion hazards,
entanglement, access & Egress)
 Emergency procedures in the event
of an incident
24

Get Permission
25
 Prepare permits and other
documentation
 Authorization
 Communication
GET PERMISSION

Get Permission
Fill Out General PTW and Other Permits/Documentation
Always perform gas testing in conjunction with a general permit to
work in accordance with the U&G Permit to Work Procedure.
For work that requires permitting, permits must be prepared in accordance with
the Upstream Permit to Work Procedure.
Prepare other permits as identified in the Planning Phase Hazard
Analysis including, but not limited to:
 Isolation of Hazardous Energy
 Hot Work
 Electrical
 Excavation
 Confined Space
All gas testing results must be documented and attached to permits
in accordance with the U&G Permit to Work Procedure.
26

Get Permission
Authorization
Permits must be approved/acknowledged before work begins by:
 Subject Matter Expert (if required)
 Permit Approver
 Person Managing Control of Work
Additional approval may be required in some circumstances,
for example:
 Special processes such as qualified gas tester for any gas testing
 Qualified Electrical Person for electrical isolations
 Other permissions may be required for affected equipment, facilities,
operations or SIMOPs
All permits must be completed and approved by all required signatories
prior to beginning work.
27

Get Permission
Communication
Communication
 There must be a means for clear communication and coordination of work to
address potential permit conflicts and/or simultaneous operations.
 Communication and permit documentation must be available in the language
appropriate for personnel involved in the work.
28

Prepare for Work
29
 Conduct work site JSA (prep
crew for work)
 Gas Testing Requirements
 Gas Testing Equipment
 Inspections/Calibrations
WORKSITE
PREPARATION

Worksite Preparation:
Conduct Work Site JSA (prep crew for work)
Job Safety Analysis (JSA)
 Must be performed in accordance with the Hazard Analysis Procedure
 Must be developed or revised onsite by the personnel performing the work
 Content of the JSA must be communicated to the work team and other affected
parties immediately prior to beginning work
 JSA content must be communicated in a language appropriate so that team
members clearly understand task hazards, safeguards and actions required to
conduct work safely
30

Gas Testing Requirements
Gas testing and/or the use of personal gas
detectors (wearable) is required during the
following activities when there is a danger of a
potentially hazardous atmosphere:
 Confined space entry
 Emergency response activities (e.g. response to
leaks, spills, etc.)
 Excavation and trenching activities
 Handling or storage of hazardous materials or
cargo (e.g. storage tanks, ships/shipyards, tank
cars, hazardous waste sites, etc.)
 Hot work activities
 Isolation of hazardous energy activities
 Process and production operations (e.g.
manufacturing facility operations, drilling &
production operations, etc.)
 Other activities or conditions as defined by the
reporting unit/facility
31

Gases must be tested in the following order:
 Oxygen content
 Flammable/explosive gases and vapors
 Toxic gases and vapors (e.g. hydrogen sulfide (H2S), benzene)
32

Acceptable atmospheric working conditions conform with applicable
Chevron and regulatory requirements and are as follows:
 Oxygen: between 19.5 – 23.5%.
 LEL: <10%.
 H2S:
– Acceptable atmospheric conditions for work activity with a duration of 15 minutes or
less is <15 ppm.
– Acceptable atmospheric conditions for work activity with a duration of more than 15
minutes is <5 ppm.
 Benzene:
– Acceptable atmospheric conditions for work activity with a duration of 15 minutes or
less is <5 ppm.
– Acceptable atmospheric conditions for work activity with a duration of more than 15
minutes is <1 ppm.
33

 Work cannot begin until gas testing results are within acceptable limits.
 Initial gas tests must be performed before work can begin.
 Follow up gas testing must be performed:
– As determined by the Qualified Gas Tester when performing all other types
of work in potentially flammable/explosive conditions, immediately
dangerous to life or health (IDLH) atmospheres, toxic atmospheres above
permissible exposure limits or other hazardous atmospheres
– After each work break onsite lasting longer than 30 minutes
– Prior to beginning work after a shift change occurs
– Anytime there are changes in work conditions (e.g. emergences, ambient
temperature changes, work disruptions, etc.)
– At any other time specified by the reporting unit/facility
34

 If gas testing results exceed the acceptable limits the following actions
must be executed in the order listed below:
– Stop work immediately
– Evacuate workers from the hazardous area
– Assess the atmospheric hazards and identify mitigation solutions
– Implement mitigation solutions
– Retest the atmospheric conditions
– Revalidate work permits
 All personnel involved in work activities that require gas testing must be
allowed to observe initial and all subsequent gas tests.
35

 Potentially stratified atmospheres must be gas tested in accordance with
applicable legal requirements, Chevron standards and/or accepted
industry best practices.
 When an area is suspected of being contaminated, gas detection
readings must be taken during the approach to the area (e.g. hazardous
material spill/release, etc.).
36

Definitions
Stratified Atmosphere
 The density of gases and vapors can result in a stratified or layered
atmosphere, particularly in confined spaces. For example:
– Some gases are heavier than air, and settle to the bottom of a space,
(hydrogen sulfide),
– Some gases are lighter than air, and concentrate at the top of a space,
(methane),
– Some gases are the same as air, and accumulate in the center of a
space, (carbon monoxide).
37

Confined Space Entry Gas Testing Requirements
Confined Space gas testing requirements include but are not limited
to:
 Initial gas testing must be performed outside the confined space
immediately prior to a worker’s entry.
 After initial gas testing has been performed outside the confined space,
gas test must be conducted inside the confined space.
– An extension wand must be used to sample as far into the space as
possible without breaking the entry barrier.
– When the entire confined space cannot be sampled using an extension
wand, the qualified gas tester must enter the space wearing a supplied air
breathing apparatus to gas test the space.
• The Qualified Gas Tester must have a confined space entry permit
(issued specifically for gas testing) in accordance with the U&G Permit
to Work Procedure.
38

Confined Space Entry Gas Testing Requirements
Confined Space gas testing requirements include but are not limited
to (continued):
 The ventilation system must be shut down for a minimum of 30 minutes
prior to conducting gas testing of large spaces.
– The ventilation must be returned to service upon completion of the gas test
and must never be stopped while workers are inside the confined space.
 Confined space entry must occur no more than 30 minutes after the
Qualified Gas Tester has tested the area and cleared it for entry.
– If entry occurs more than 30 minutes after the area has been cleared for
entry by the Qualified Gas Tester, the gas test must be redone and the
permit revalidated before entry can occur.
 Continuous gas testing must occur and be documented at a minimum of
every 4 hours unless the type of work being conducted does not allow for
continuous monitoring (e.g. water washing of a tank).
39

Excavation Gas Testing Requirements
Excavation and trenching gas testing requirements include but are
not limited to:
 Initial gas testing must be performed upon detection of:
– Unexpected odors (e.g. exhaust fumes, H2S odors, etc.)
– Unexpected subsurface structures (e.g. pipelines, drums, tanks, etc.)
– Unexpected discharges
 Excavation activities must occur no more than 30 minutes after the
Qualified Gas Tester has tested the area and cleared it for work.
– If excavation activities occur more than 30 minutes after the area has been
cleared for work by the Qualified Gas Tester, the gas test must be redone
before excavation activities can resume.
 The Qualified Gas tester will determine the frequency for follow-up gas
testing based on the potential hazards identified and will document this
on the General Work permit.
40

Hot Work Gas Testing Requirements
Hot Work gas testing requirements include but are not limited to:
 Initial gas testing must be performed after the work site and equipment
have been isolated and prepared.
 Hot work activities must begin no more than 30 minutes after the
Qualified Gas Tester has tested the area and cleared it for hot work to
start.
– If hot work activities occur more than 30 minutes after the area has been
cleared for work by the Qualified Gas Tester, the gas test must be redone
and the permit revalidated before hot work activities can resume.
 The Qualified Gas tester will determine the frequency for follow-up gas
testing based on the potential hazards identified and will document this
on the hot work permit.
 Gas testing must be performed in the area surrounding the hot work
activity at a minimum distance of 15 meters (50 feet).
41

Hot Work Gas Testing Requirements
Hot Work gas testing requirements include but are not limited to
(continued):
 When conducting hot work on or in tanks, vessels or piping, gas testing
must be conducted:
– At all openings and enclosed spaces above and below the location where
hot work is being conducted.
– At all openings ≤ 15 horizontal meters (50 feet) of where hot work is being
conducted.
 Gas testing is required when motorized vehicles (battery or internal
combustion) are being operated within areas where flammable vapors
may be present.
 Gas testing is required when non-intrinsically safe or non-explosion proof
electrical or battery operated equipment is used in a Hazardous
(Classified) Area.
– Personnel using non-intrinsically safe or non-explosion proof equipment at
the work site must wear a personal gas monitor.
42

Gas Testing Equipment
 Portable gas testing instruments, personal gas detectors (wearable)
and equipment must:
– Be intrinsically safe and approved for use in potentially hazardous
atmospheres by a recognized testing organization. The only exception
to this requirement is if no intrinsically safe instrument/equipment exists.
– Be appropriate for use in the environment being monitored (e.g.
sensitivity, specificity, temperature, moisture, inert environments and
susceptibility of sensor to poisoning or inhibition by other gasses
present).
– Be capable of measuring oxygen content, combustible/flammable limits
and toxic gasses and vapors accurately to the lowest concentration at
which the material becomes hazardous.
– Have both audible and visual functioning alarms.
– Have established alarm set points.
43

Gas Testing Equipment
 Personal gas monitors must be worn in
accordance with the manufacturer’s
monitor placement instructions.
 Gas testing equipment and supplies (e.g.
colorimetric tubes, calibration gases, etc.)
must not be used if they have been altered,
damaged or have expired beyond the
designated service life.
44

Inspection/Calibration
 Gas testing instruments and equipment must be maintained, inspected
and stored in accordance with manufacturer’s instructions.
 Gas testing instruments and equipment must be calibrated with
certified calibration gases of known concentration per manufacturer’s
instructions. Calibrations must be documented.
– When an instrument does not pass a full calibration test, it must be
recalibrated by the manufacturer.
45

Definitions
46
 Alarm Set Point
– Fixed or adjustable setting of the apparatus that is intended to pre-set the level of concentration at which the
apparatus will automatically initiate and indication, alarm or other output function.
 Calibration (of Portable Gas Detectors)
– An instrument’s measuring accuracy relative to a known concentration of gas.
 Continuous Gas Test
– A process whereby gases which may be present or which may be generated during work are continuously
monitored. Continuous gas testing is normally required where there is a high likelihood of changing gas
concentrations and/or there is a high risk to workers if the gas concentration changes unexpectedly
 Follow Up Gas Testing
– Testing at intervals, performed after the initial testing, sufficient to ensure that the atmosphere remains safe
for the work being performed.
 Initial Gas Test
– Gas test, or tests, that are conducted prior to beginning work and that are designed to determine the
following:
• Requirements for confined space entry
• Whether the area is safe for hot work
– The tests may be conducted in two parts: testing a confined space initially from the outside and then testing
again on the inside to determine if it is safe for work to commence.
 Intrinsically Safe
– Equipment and wiring which is incapable of releasing sufficient thermal or electrical energy under normal
and abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most easily
ignitable concentration.

Definitions
47
 Lower Explosive Limit (LEL)
– Lowest concentration (%) of a gas or vapor in air capable of producing a flash or fire in the
presence of an ignition source (arch, flame, heat). Also called lower flammable limit (LFL).
 Oxygen Deficient
– An atmosphere containing <19.5% oxygen by volume.
 Oxygen Enriched
– An atmosphere containing >23.5% of oxygen by volume.
 Personal Gas Detector (Wearable)
– A wearable device, usually battery operated, which senses the presence of gases including
oxygen, toxic and or combustible gases.
 Handheld/Portable Gas Detector
– A handheld device, usually battery operated, which senses the presence of gases including
oxygen, toxic and or combustible gases.
 Portable Gas Detector
– A spot-reading or continuous-duty gas detection apparatus that has been designed to be
readily carried from place to place. A portable device that is battery operated and includes
but is not limited to:
• Handheld apparatus, suitable for single handed operations.
• A larger apparatus that can be operated by the user while it is suspended by hand, shoulder strap or
by a carrying harness; it may or may not have a hand directed probe.

2nd Verify
48
 Ensure ongoing compliance
with Portable Gas Detection
standard and procedures
 Equipment Field Verifications
VERIFICATION &
VALIDATION

Verification and Validation:
Equipment Field Verifications
 Gas testing instruments and equipment must be field verified:
– Personal (wearable) gas detectors must be auto zero checked daily (i.e.
prior to use).
– Handheld/portable gas detectors must be functional and/or bump tested
daily (daily tests must be documented).
– Personal (wearable) gas detectors must be functional and/or bump tested
monthly (monthly tests must be documented).
– All gas testing instruments and equipment not used regularly must be
functional and/or bump tested monthly (not to exceed a period of 30 days;
tests must be documented).
– All gas testing instruments and equipment must be functional and/or
bump tested at additional intervals in accordance with manufacturer’s
instructions (tests must be documented).
49

Definitions
50
 Bump Test/Functional Test
– A test that verifies calibration by exposing the instrument to a known
concentration of test gas (or known concentrations of gas mixtures).
The instrument reading is compared to the actual quantity of gas
present (as specified on the testing material or certificate). Calibration
is verified if the instrument’s response is within an acceptable tolerance
range (specified by the manufacturer of the testing material) of the
actual concentration.

Definitions
51
 Verification is the evaluation of whether or not safeguard and or
system complies with a requirement or specification (i.e., is in place).
 Validation is the assurance that a safeguard or system meets the
need (i.e., effectiveness of safeguard).

Work
52
 Perform work
 Stop work if conditions
change
 Revalidate/cancel permit(s),
if necessary
WORK

Work
Stop Work If Conditions Change
Actions required if work changes, unsafe or unexpected conditions develop or
there is a change in personnel, change in specified permit conditions, incident or
emergency.
 Use Stop Work Authority (SWA)
– Stop Work Authority (SWA) establishes the responsibility and authority of any
individual to stop work when an unsafe condition or act could result in an
undesirable event.
 JSA review
– Review the JSA with the work team to revalidate or update as required.
53

Work
Stop Work If Conditions Change
Validity of Permits
 Stop work, assess and mitigate
hazards
 Revalidate permits, including but not
limited to:
– The job site is left unattended for
any period of time
– Gas testing results exceed
acceptable atmospheric working
conditions
– Gas Detection equipment failure
– Incident and/or near miss occurs
– Exceed established permit
conditions
– Unsafe conditions recognized
– Change of entire work crew
– Person Managing Control of Work
becomes unavailble
– Change in job site conditions (e.g.,
leaks, spills, alarm, weather or
specified permit conditions are
exceeded (time period, gas testing
requirement and etc.)
– Emergency
– Safety concern raised
54

Work
Revalidate/cancel Permit(s), if necessary
Revalidation
 Permits must be revalidated by the Person Managing Control of Work.
Permits Cancelled
 If the scope of work changes (e.g., introduction of additional work steps,
equipment and/or SIMOPs activities, etc.) then permits must be cancelled and:
– Work must be re-evaluated per the Hazard Analysis Procedure
– New permits must be developed and issued
55

Close Out
56
 Close out permits and return
to point of origin
CLOSE OUT

Closeout
Close Out Permits
 Permits are signed via wet signature by:
– Person Managing Control of Work
– If required, Subject Matter Expert (SME)
– Permit Approver
 The on site Person Managing Control of Work must verify and inform the
Permit Approver that:
– The work is complete
– The site is restored
– Equipment/machinery is ready to return to service
– A closeout discussion with the work team has been conducted and documented on
the on site JSA
57

Close Out
Return Permits to Point of Origin
 Permits and associated document must be returned to the point of
origin.
 Records must be retained according to the period of time specified in
Table 5 in the MSW Process Section 8.0.
– 6 months for Permits
– 5 years for training records
58

Continual Improvement
Continual improvement includes:
 The frequency and detail of continual improvements must depend upon
statutory and Chevron requirements as well as best practices.
 Inspections, reviews, assessments, audits and lessons learned are
documented.
59
CONTINUAL IMPROVEMENT
Inspections, Reviews, Assessment,
Audits, Lessons Learned

Fill out Gas Testing Section of Permit
60

07. Portable Gas Detection Training_Eng.pptx

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