Testing of mineral products - determination of grade of purity by gaschromatography - part 2 : cetane and 1 - methyl - naphthaline 矿产品的检验.用气相色普法测定纯度的等级.第2部分
2.
Testing of plastics ; determination of the percentage of styrene in reaction moulding materials based on unsaturated polyester resins ; gaschromatography method 塑料的检验.以不饱合聚脂树脂为基的反应模塑材料中苯
