DIN 53394-1974 塑料的试验.在模塑状态下不饱和聚酯树脂模塑材料中单体苯乙的百分比量的测定.用Wijs溶液法测定
Testing of plastics; determination of the percentage of styrene in unsaturated polyester resin moulding material in the moulded state, test method with Wijs-solution
Testing of plastics; determination of the percentage of styrene in unsaturated polyester resin moulding materials in the moulded state; test method with Wijs-solution