DIN EN ISO 7822:2000-01 纺织玻璃增强塑料 - 空隙率的测定 - 烧失量、机械崩解和统计计数方法(ISO 7822:1990)
Textile glass reinforced plastics - Determination of void content - Loss on ignition, mechanical disintegration and statistical counting methods (ISO 7822:1990); German version EN ISO 7822:1999