ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)103231
CIS number 04-183
ISBN(s) 0-7176-2843-4
Year 2004
Convention or series no. HSE Research Report RR 226
Author(s) Daycock J.H., Rew P.J.
Health and Safety Executive
Title Development of a method for the determination of on-site ignition probabilities
Bibliographic information HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2004. iv, 67p. Illus. 36 ref. Price: GBP 20.00. Downloadable version free of charge.
Internet access [in English]
Abstract The estimation of probability of ignition is a key step in the assessment of risk for premises where flammable liquids or gases are stored. Currently, simple models tend to be used, which assume that ignition probability is a function only of release rate, or cloud size, and do not consider location, density or type of ignition source. Ignition sources on hazardous installation plants tend to be better controlled than off-site sources. However, these measures are mainly designed to prevent the ignition of small releases within defined hazardous areas. This report describes an ignition probability model that has been developed to consider larger, catastrophic, releases that may come into contact with on-site ignition sources within non-hazardous areas and buildings.
Descriptors (primary) flammable liquids; flammable gases; plant safety organization; sources of ignition; hazard evaluation; fire hazards
Descriptors (secondary) dangerous substances; report; industrial buildings; storage; description of technique; major hazards; leakage; mathematical models; premises
Document type E - Books, reports, proceedings
Country / State or ProvinceUnited Kingdom
Subject(s) Fire and explosions
Broad subject area(s) Fires, explosions and major hazards
Browse category(ies) Fires
Risk evaluation