New Guidance document on the use of scaling factors

Annex I of EN15004-1 is an informative Annex dealing with Class B fuels, essentially flammable liquids, which means that it is intended to provide information for designers and specifiers when preparing a system to protect Class B hazards. EN15004-1 explains how to determine the extinguishing concentration for Class B fuel.

However, when used in conjunction with the specific parts for the different agents (EN15004-2 to 11), it raises questions on how to apply the requirement in some cases. Annex I, while informative, offers a reasonable methodology applicable in general that provides a more robust design, which Euralarm recommends using in all cases.

This guidance is intended to provide the background to contents of Annex I and explain how it should be applied by system designers.

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