塑料 聚苯乙烯（PS）、抗冲击聚苯乙烯（PS-I）、丙烯腈-丁二烯-苯乙烯（ABS）及苯乙烯-丙烯腈（SAN）树脂中残留苯乙烯单体含量的测定 气相色谱法

Plastics—Determination of residual styrene monomer in polystyrene (PS), impact-resistant polystyrene (PS-I), acrylonitrile-butadiene-styrene (ABS) and styrene-acrylonitrile (SAN) resin—Gas chromatography