Requirements, test methods for performance and recommendations for appropriate application for flame (deflagration and detonation) arresters, excluding flame arresters for welding equipment covered in BS 6158.Cross References:BS 4250:Part 1BS 4683:Part 2BS 5501:Part 1BS 5501:Part 5BS 5750BS 6158Merchant Shipping (Cargo Ship Construction and Survey) Regulations 1984