BS EN 1568-4:2008 PDF

Scope: This document specifies requirements for chemical and physical properties, and minimum performance requirements of low expansion foams suitable for surface application to water-miscible liquids. Requirements are also given for marking. IMPORTANT — In this part of the document, the fire performance is tested using acetone and isopropanol as the fuel, which also forms the basis for the performance classification. However, there are a large number of water-miscible liquids, which have more or less different properties to acetone and isopropanol. It has been shown by tests using other fuels that the performance of various foams can differ considerably. Examples of such fuel is Methyl Ethyl Ketone (MEK). It is therefore essential that the user checks for any unfavourable or unacceptable loss of efficiency when the foam is used against fires in any other water-miscible fuels than acetone and isopropanol resepectively. The fire test conditions and procedure given in J.2 can be used in order to achieve results comparative with acetone and isopropanol resepectively and related requirements. It is also essential for the user to note, that other fuel depths and methods of application than those specified in I.2, can cause considerable loss of efficiency and these matters should be carefully considered by the user when assessing the suitability for particular applications.

BS EN 1568-4:2008 Referenced Document

EN ISO 3104 Petroleum products - Transparent and opaque liquids - Determination of kinematic viscosity and calculation of dynamic viscosity (ISO 3104:2023)*， 2023-11-22 Update
EN ISO 3219 Plastics - Polymers/ Resins in the Liquid State or as Emulsions or Dispersions - Determination of Viscosity Using a Rotational Viscometer with Defined Shear Rate
EN ISO 3696 Water for Analytical Laboratory Use- Specification and Test Methods (ISO 3696 : 1987)
ISO 304 Surface active agents - Determination of surface tension by drawing up liquid films; Technical Corrigendum 1
ISO 3310-1 Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth*， 2016-08-01 Update

2018 BS EN 1568-4:2018 Fire extinguishing media. Foam concentrates. Specification for low expansion foam concentrates for surface application to water-miscible liquids
2008 BS EN 1568-4:2008 Fire extinguishing media — Foam concentrates — Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids