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GB/T 20975.14-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 14:Determination of nickel content
GB/T 24522-2020
Metallic materials—Method of test for the determination of resistance to stable crack extension using specimens of low constraint
GB/T 20975.16-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 16:Determination of magnesium content
GB/T 13912-2020
Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods
GB/T 20975.36-2020
铝及铝合金化学分析方法 第36部分:银含量的测定 火焰原子吸收光谱法
Methods for chemical analysis of aluminium and aluminium alloys—Part 36:Determination of silver content—Flame atomic absorption spectrometry





