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 dioxid
This standard gives guidance for identifying and investigating spillage,
leakage or build‑up of combustion products from gas-fired appliances in
non-domestic premises. It gives recommendations for determining the
combustion performance of such equipment, using electronic portable
combustion gas analysers. This involves sampling and measuring the
carbon monoxide (CO) and carbon dioxide (CO) in the ambient air and
in gas-fired appliance chimneys.
This standard is for use with equipment using 1st, 2nd or 3rd family
gases.
NOTE 1 An operative attending non-domestic premises might be
required to examine standard gas-fired appliances which are domestic or
commercial as well as customized process plant/equipment.
NOTE 2 This standard does not cover the response of an emergency service
provider (ESP) to a gas emergency. It also does not cover procedures for
investigating incidents that are reportable under the Reporting of Injuries,
Diseases and Dangerous Occurrences Regulations 1995 (RIDDOR) and
the Gas Safety (Management) Regulations 1996 (GSMR).
NOTE 3 Combustion products from gas-fired appliances contain
aldehydes and oxides of nitrogen (NOx), predominantly nitrogen
monoxide (nitric oxide, NO) and nitrogen dioxide (NO). Although this
standard does not cover the measurement of these substances, quantities
of such products could be present in the air and could cause harm and
irritation to humans. For guidance on the health considerations associated
with these combustion products, see the Institute for Environment and
Health assessment, Indoor air quality in the home: Nitrogen dioxide,
formaldehyde, volatile organic compounds, house dust mites, fungi and
bacteria.