Changes to B&ES Association TR/19 incorporating BSEN15780

1. TR/19 Second Edition
Managing Ventilation Hygiene Risks
Presented by
Gary J Nicholls Co-author TR/19

2. Speaker – Gary J Nicholls
• Managing Director of Swiftclean (UK) Ltd, trading as
Swiftclean Building Services
• Co-author of;
– TR/17 first & second editions
– TR/19 first & second editions
• Steering Group Member producing;
– FMS1 – BSRIA Ventilation Hygiene Specification &
Guidance
– RC44 – FPA Recommendations for fire risk assessment of
catering extract ventilation
– TM26 – CIBSE hygienic maintenance of office ventilation
ductwork
– BG 492013 – BSRIA commissioning air systems

3. Agenda
• What the law requires
• Key ventilation system risks – hygiene related
• What TR/19 is
• System cleanliness quality classes
• A suitable system to manage ventilation system
hygiene
• Summary

4. Key risks with poor ventilation hygiene
• Fire and the spread of fire
– Forensic fire investigators state 25%
significantly worst
• Reduces efficiency – higher energy spend
– Heat transfer and fan energy requirements
• Quality of air that we breathe
– Duct 10% of floor area

5. Regulations are Laws approved by
Parliament
• Management of Health and Safety at Work
Regulations
– duty of care on every employer to conduct a risk assessment
• Workplace (Health, Safety & Welfare) Regulations (L24
second edition 2013)
- Regulation 6 require building owners and
managers to ensure that enclosed workplaces
are ventilated with fresh and purified air
- Regulation 5 imposes a duty to clean
ventilation systems “as appropriate“ and ensure
they are subject to a suitable system of
maintenance

6. What is TR/19?
• Industry - Guide To Good Practice
• Subject - Internal Cleanliness of Ventilation Systems
• Written by Industry experts/practitioners, developed/improved over
past 23 years
• Latest version published by B&ES in July 2014
• Publishing history
– DW/TM2 1991 – guidance on protection against dust egress into ductwork
during construction
– TR/17 1998 introduced for the first time in the UK good practice guidance
testing/verification
– TR/17 Second Edition 2002 more detailed guidance for kitchen extract
systems
– TR/19 2005 – added a revised version of TM2 for
– TR/19 Second Edition 2013, incorporates philosophy of BSEN15780, new
system verification & improved kitchen extract fire safety

7. Define cleanliness quality classes
(TR/19 2013, BSEN15780, BG 2013)

8. Ensuring new ventilation system cleanliness
• Construction site dusty environment
• Chimney effect
• Affectivity of protection measures
• Dust ingress inevitability
• Miles on the clock!
• Inspect & as required test to quality class
• Pre-commission clean/test/handover

9. tree
TR/19
New
System
Decision
Tree

10. New Ventilation System
Acceptable or not?

11. Objective measurement
Dust/contamination level testing
• Deposit
Thickness
Test (DTT)
• Preferred
Vacuum
Test (PVT)

12. Commission to TR/19
Maintain to TR/19

13. A suitable system of maintenance includes
Risk Assessment to TR/19
– Adequate access?
– Monitor/test conditions based on cleanliness
quality classes

14. Failure
of
Duty

15. Adequate access?

16. Monitor/test conditions based on cleanliness
quality classes

17. Unacceptable contamination affects
Quality of air that we breath

18. Follow TR/19 guidance for suitable
ventilation hygiene control
• Cleanliness quality classes
• Adequate access for inspection/testing/cleaning
• Cleanliness of newly installed ventilation systems
• Implement a management system to control risks
with periodic inspection and testing
• Testing fire damper function
• Cleaning as appropriate
• Log book/record keeping to evidence
• A suitable system of maintenance
• Compliant duty fulfilled

19. “The Science of Compliance”