BS 7967-5:2010 BSl Standards Publication Carbon monoxide in dwellings and other premises and the combustion performance of gas-fired appliances Part 5: Guide for using electronic portable combustion gas analysers in non-domestic premises for the measurement of carbon monoxide and carbon dioxide levels and the determination of combustion performance bsi. ..making excellence a habit: BS7967-5:2010 BRITISH STANDARD Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. @BSI2010 ISBN9780580529696 ICS 13.040.40; 97.100.20 The following BSI references relate to the work on this standard: Committee referenceGSE/30 Draft forcomment08/30166742DC Publication history First published September 2010 Amendments issued since publication Date Text affected BRITISH STANDARD BS7967-5:2010 Contents Foreword ii 1 Scope 2 Normative references 1 3 Terms and definitions 2 4 Competency 4 5 Safety principles 5 6 Electronicportable combustiongas analysers8 7 Measuring levels of cO and cO2 in ambient air 11 8 Investigating CO and cO2 in the combustion products stream of suspect gas-fired appliances 17 6 Gas-fired appliance chimney types and system types 23 10 Domestic gas-fired appliances installed in non-domestic premises 28 11 Post-testing 32 Annexes Annex A(informative)Additional investigation considerations 34 AnnexB (informative)Theeffects of cO and cO2 on human beings 41 Bibliography 43 List of figures Figure 1 - Procedure for routine checks for CO2 emissions and the suspected leakage of combustion products/cO2 or reported fumes 6 List of tables Table 1-Registration and approval bodies by country/territory Table 2 -Competence requirements by country/territory5 Table 3 -Acceptable combustion performance ratio levels for domestic gas-fired appliances operating in non-domestic premises 21 Table B.1-Health effects of cO on adult human beings 541 Table B.2 - Health effects of cO2 in ambient air and guideline exposure limits 41 Table B.3-Fresh air requirementvalues for respiration4 42 Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 46, an inside back cover and a back cover. BSI2010 BS 7967-5:2010 BRITISH STANDARD ii·@BSI2010 This page deliberately left blank BRITISH STANDARD BS7967-5:2010 Foreword Publishing information This British Standard is published by BSI and came into effect on 30September2010.It wasprepared byTechnical CommitteeGSE/30, Gas installations (1st, 2nd and 3rd family gases).A list of organizations represented on this committee can be obtained on request. Relationship with otherpublications The standard is issued in five parts: Part 1:Guide foridentifying and managing sources of fumes, smells, spillagelleakage of combustion products and carbon monoxidedetectoractivation; Part 2:Guideforusing electronicportable combustiongas analysers inthemeasurementof carbonmonoxideand the determinationofcombustionperformance; Part3:Guideforrespondingtomeasurementsobtainedfrom electronic portable combustion gas analysers; Part 4: Guide for using electronic portable combustion gas analysers as part of the process of servicing and maintenance of gas-fired appliances; Part 5:Guide for using electronicportable combustion gas analysers innon-domesticpremises forthemeasurementof carbon monoxide and carbondioxide levels and thedeterminationof combustion performance. Information about this document The presentation of guidance in this standard is intended to help operatives when using electronicportablecarbonmonoxide(co)and carbon dioxide (cO2) analysers. Its aim is to help them consider relevant issues and circumstances in non-domestic premises relating to: the identification and assessment of combustion products in indoor air; thedetermination of theratioof combustion products from gas-fired appliances; howtorespondtothemeasurementsobtained fromelectronic portablecombustiongas analysers. It is not intended to be an exhausti