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 39143-2020
Methods for chemical analysis of gold-arsenic alloys—Determination of arsenic content—Inductively coupled plasma atomic emission spectrometry
GB/T 34609.2-2020
Method for chemical analysis of rhodium compounds—Part 2: Determination of silver,gold,platinum,palladium,iridium,ruthenium,lead,nickel,copper,iron,tin,zinc,magnesium,manganese,aluminium,calcium,sodium,potassium,chromium and silicon contents—Inductively c
GB/T 8151.23-2020
Methods for chemical analysis of zinc concentrates—Part 23: Determination of mercury content—Solid sampling and direct mercury analysis method
GB/T 20975.17-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 17: Determination of strontium content
GB/T 20975.6-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 6: Determination of cadmium content
GB/T 8151.22-2020
Methods for chemical analysis of zinc concentrates—Part 22: Determination of zinc, copper, lead,iron,aluminium ,calcium and magnesium contents—Wavelength dispersive X-ray fluorescence spectrometric method
GB/T 2969-2020
Samarium oxide
GB/T 20975.21-2020
Methods for chemical analysis of aluminium and aluminium alloy—Part 21: Determination of calcium content
GB 39176-2020
Rare earth products packing, marking, transport and storage
GB/T 38982-2020
Method of measuring shape and dimension for wrought titanium and titanium alloy products
GB/T 38958-2020
Wrought aluminum alloy precision forging—Technological specification
GB/T 38986-2020
Methods of descaling and cleaning for zirconium and zirconium alloy surfaces
GB/T 38964-2020
Isothermal forging for titanium-alloy—Technological specification
GB/T 20975.37-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 37:Determination of niobium content
GB/T 38939-2020
Nickel-based alloy—Determination of multi-element contents—Spark discharge atomic emission spectrometric method(routine method)
GB/T 38783-2020
Method of coating thickness determination for precious metal composites by scanning electron microscope
GB/T 20975.9-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 9:Determination of lithium content—Flame atomic absorption spectrometry
GB/T 20975.7-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 7:Determination of manganese content
GB/T 20975.5-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 5：Determination of silicon content
GB/T 20975.4-2020
Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content