组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 20975.35-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 35:Determination of tungsten content—Thiocyanate spectrophotometric method
GB/T 20975.3-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 3：Determination of copper content
GB/T 20975.25-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 25：Determination of elements content—Inductively coupled plasma atomic emission spectrometric method
GB/T 20975.24-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 24：Determination of total rare earth content
GB/T 20975.23-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 23:Determination of antimony content
GB/T 20975.22-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 22:Determination of beryllium content
GB/T 20975.18-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content
GB/T 20975.16-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 16：Determination of magnesium content
GB/T 20975.14-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 14：Determination of nickel content
GB/T 20975.12-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 12: Determination of titanium content
GB/T 20975.10-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 10：Determination of tin content
GB/T 20975.31-2019
Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry
GB/T 20975.30-2019
Methods for chemical analysis of aluminium and aluminium alloys—Part 30：Determination of hydrogen content—Heating extraction-thermal conductivity method
GB/T 20975.29-2019
Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry
GB/T 20975.28-2019
Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry
GB/T 24487-2009
GB/T 4949-2018
Chemical analysis methods for sacrificial anodes of Al-Zn-In system alloy
GB/T 20975.27-2018
Methods for chemical analysis of aluminium and aluminium alloys—Part 27：Determination of cerium,lanthanum,scandium—Inductively coupled plasma atomic emission spectrometry method
GB/T 20975.2-2018
Methods for chemical analysis of aluminium and aluminium alloys—Part2: Determination of arsenic content
GB/T 20975.1-2018
Methods for chemical analysis of aluminium and aluminium alloys—Part 1：Determination of mercury content