EVS-EN 16712-4:2018

1.1  This document applies to high expansion foam generators, having an expansion ratio greater than 200:1, whose only source of external power is the pressure and/or flow of the water supply to the device. This is used by fire and rescue services and contains their specification and test procedures.
NOTE  In this document, the term"foam generator" also refers to "high expansion foam generator".
1.2  This document deals with all significant hazards, hazardous situations or hazardous events, with the exception of noise, relevant to high expansion foam generator, when it is used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
1.3  This document does not cover misting applications.
1.4  This document is not applicable to high expansion foam generators which have been manufactured before its date of publication as EN.