NF S60-211-4*NF EN 1568-4:2018 Fire extinguishing media - Foam concentrates - Part 4 : specification for low expansion foam concentrates for surface application to water-miscible liquids
2018NF S60-211-4*NF EN 1568-4:2018 Fire extinguishing media - Foam concentrates - Part 4 : specification for low expansion foam concentrates for surface application to water-miscible liquids