2007DIN EN 3-7:2007-10 Portable fire extinguishers - Part 7: Characteristics, performance requirements and test methods; German version EN 3-7:2004+A1:2007
2007DIN EN 3-7:2007 Portable fire extinguishers - Part 7: Characteristics, performance requirements and test methods;German version EN 3-7:2004+A1:2007