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RR281 - Investigations into concerns about BS EN 12874: 2001 flame arresters

Concerns have been raised by both industry and testing organisations that a flame arrester tested in to BS EN 12874:2001 may satisfy the requirements of the test process yet allow flame transmission under all operational conditions.

Herein this report there is a comprehensive discussion of the current status of knowledge regarding flame acceleration within pipelines which forms an introduction to a review of BS EN 12874; the practical problems involved in the testing of flame arresters; and a more detailed consideration of some concerns that have arisen from actual testing and specifying of deflagration and detonation arresters.

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Updated 2010-03-19