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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