TR/19 Second Edition
Managing Ventilation Hygiene Risks Presented by
Gary J Nicholls Co-author TR/19
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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
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Key risks with poor ventilation hygiene
• Quality of air that we breathe – Duct 10% of floor area – Absenteeism, productivity
• Reduces efficiency – higher energy spend – Heat transfer and fan energy requirements
• Fire and the spread of fire • Compromise buildings insurance
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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 5 imposes a duty to clean ventilation systems “as appropriate“ and ensure they are subject to a suitable system of maintenance
- Regulation 6 requires building owners and managers to ensure that enclosed workplaces are ventilated with fresh and purified air
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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
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Define cleanliness quality classes (TR/19 2013, BSEN15780, BG 2013)
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Ensuring new ventilation system cleanliness
• Dust ingress inevitability • Miles on the clock! • Inspect & as required test to quality class • Pre-commission clean/test/handover
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New Ventilation System Acceptable or not?
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Commission to TR/19
Maintain to TR/19
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A suitable system of maintenance includes
Risk Assessment to TR/19 – Define cleanliness quality class
• Frequency of testing/cleaning – Adequate access? – Fire dampers – passive fire protection – Kitchen extract – fire safety – LEV – personnel protection – Monitor/test conditions based on cleanliness
quality classes
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Adequate access? TR/19
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Monitor/test conditions based on cleanliness quality classes
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Failure of
Duty
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Unacceptable contamination affects quality of air that we breathe
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Kitchen Extract Fire Safety
• 25% of fires made significantly worse due to failure to clean adequately
• Compromises buildings insurance • Failure of duty under Regulatory Reform Fire
Safety Order • Negligence could lead to prosecution • Maintaining grease levels below 200 microns
complies with TR/19
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Follow TR/19 guidance for suitable ventilation hygiene control
• Cleanliness quality classes • Adequate access for inspection/testing/cleaning • Cleanliness of newly installed ventilation systems • A suitable system of maintenance to control risks
with periodic inspection and testing • Testing fire damper function • Cleaning as appropriate • Log book/record keeping with photographic
evidence • Compliant duty fulfilled
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www.swiftclean.co.uk Tel: 01702 531221
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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
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