DS EN 50267-2-1:1998 Common Test Methods For Cables Under Fire Conditions - Tests On Gases Evolved During Combustion Of Materials From Cables - Part 2-1: Procedures - Determination Of The Amount Of Halogen Acid Gas Defines the procedures for the determination of the amount of halogen acid gas, other than hydrofluoric acid, evolved during the combustion of compounds based on halogenated polymers and compounds con