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Document ID (ISN)101117
CIS number 03-331
ISBN(s) 0-7176-2259-2
Year 2002
Convention or series no. HSE Contract Research Report CRR 406/2002
Author(s) Hill R.W.
Health and Safety Executive
Title Assessment of methods to detect leaks in the casing of room sealed appliances
Bibliographic information HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2002. vi, 61p. Illus. 3 ref. Price: GBP 25.00.
Internet access [in English]
Abstract Incidents involving the escape of carbon monoxide from central heating boilers occur frequently. The purpose of this study was to evaluate suitable procedures for detecting leaks from the case and seals of pressurized central heating boilers. The following procedures were found to be suited: visual and tactile inspection of the case and seals; smoke tubes to produce smoke for flow visualization; smoke matches to produce smoke for flow visualization; ordinary matches and wax tapers to produce a flame for flow visualization. However, the use of a flue gas analyser is not recommended: it does detect the drop in oxygen concentration or the presence of carbon monoxide due to a leak of combustion products, but may miss the small changes from a boiler burning well but leaking only slightly.
Descriptors (primary) United Kingdom; carbon monoxide; leak detection; central heating systems; leakage; fired pressure vessels
Descriptors (secondary) report; description of technique; smoke generators; smoke producing agents
Document type E - Books, reports, proceedings
Country / State or ProvinceUnited Kingdom
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Compressed gases and pressure vessels
Carbon monoxide
Inorganic substances