DIN EN 50267-2-2:1999 电缆通用着火试验方法.检测电缆燃烧时所产生的气体.第2-2部分:试验方法.通过测定Ph值和传导率确定电缆燃烧产生的气体的酸度
Common test methods for cables under fire conditions - Tests on gases evolved during combustion of material from cables - Part 2-2: Procedures; determination of degree of acidity of gases for materials by measuring pH and conductivity; German version EN 5