BS 2782-4 Methods 452D to 452F-1978
塑料试验方法.第4部分:化学性能.聚烯烃混合物水萃取物pH值测定.聚烯烃混合物水可溶硫酸盐含量测定.聚烯烃混合物水可溶氯化物含量测定
Methods of testing plastics - Chemical properties - Determination of pH of water extract of polyolefin compound - Determination of water-soluble sulphates in polyolefin compound - Determination of water-soluble chlorides in polyolefin compound