GB/T 16479-2020
碳酸轻稀土
Light rare earth carbonate
- 实施日期
- 2021-10-01
- ICS 分类
- 77.120.99
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 16479-2020
Light rare earth carbonate
GB/T 24982-2020
Garnet aluminate series of rare earth phosphors for white LED
GB/T 20892-2020
Praseodymium-neodymium metal
GB/T 39231-2020
Cerium chloride anhydrate
GB/T 39233-2020
Lanthanum-copper alloys
GB/T 39125-2020
Cerium-magnesium alloys
GB/T 39138.3-2020
Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 3:Determination of chromium, iron, silicon and boron contents—Inductively coupled plasma atomic emission spectrometry
GB/T 39138.2-2020
Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 2:Determination of nickel content—Dimethylglyoxime gravimetric method
GB/T 39138.1-2020
Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 1:Determination of gold content—Potentiometric titration using ferrous sulfate
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 2969-2020
Samarium oxide
GB 39176-2020
Rare earth products packing, marking, transport and storage
GB/T 38986-2020
Methods of descaling and cleaning for zirconium and zirconium alloy surfaces
GB/T 38783-2020
Method of coating thickness determination for precious metal composites by scanning electron microscope
GB/T 8763-2020
Test methods for gas absorption characteristic of non-evaporation gettering materials and products
GB/T 38744-2020
Methods for chemical analysis of synergistic catalysis elements in automotive exhaust catalysis-Determination of cerium, lanthanum, praseodymium, neodymium ,barium and zirconium contents-Inductively coupled plasma atomic emission spectrometry
GB/T 38513-2020
Methods for chemical analysis of niobium hafnium alloys—Determination of hafnium, titanium, zirconium, tungsten, tantalum contents—Inductively coupled plasma atomic emission spectrometry
GB/T 15076.7-2020
Methods for chemical analysis of tantalum and niobium—Part 7:Determination of phospherus content in niobium—4-Formyloxy-pentyl ketone-[2] extraction separation phosphomolybdate blue spectrophotometry and inductively coupled plasma atomic emission spectrom
GB/T 15076.6-2020
Methods for chemical analysis of tantalum and niobium—Part 6:Determination of silicon content—Inductively coupled plasma atomic emission spectrometry