GB/T 37640-2019
Determination of chloroacetaldehyde,2,4-dihydroxy-3-methylbenzaldehyde,crotonaldehyde,acetophenone,2-pentylidenecyclohexanone and glutaral in cosmetics—High performance liquid chromatography
GB/T 37640-2019
铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
GB/T 37640-2019
GB/T 37640-2019
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
GB/T 37640-2019
GB/T 37640-2019
贵金属合金化学分析方法 钯、银合金中钯量的测定 二甲基乙二醛肟重量法
GB/T 37640-2019
Methods for chemical analysis of molybdenum--The glyoxal bis (2-hydroxyanil) photometric method for the determination of calcium content
GB/T 37640-2019
Methods for chemical analysis of tungsten--The glyoxal bis (2-hydroxyanil) photometric method for the determination of calcium content
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).
GB/T 37640-2019
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
GB/T 37640-2019
Cosmetic raw materials. Sunscreens. (1,3,5)-triazine-2,4-bis{(4-(2-ethyl-hexyloxy)-2-hydroxy)-phenyl}-6-(4-methoxyphenyl) and 2,2-methylene-bis-6-(2H-benzotriazol-2-yl)-4-(tetramethyl-butyl)-1,1,3,3-phenol. Determination by liquid chromatography.