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.