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GB/T 15076.4-2020
Methods for chemical analysis of tantalum and niobium—Part 4:Determination of iron content—1,10-Phenanthroline spectrophotometry
GB/T 15076.11-2020
Methods for chemical analysis of tantalum and niobium—Part 11:Determination of arsenic,antimony,lead,tin and and bismuth contents in niobium—Direct current arc atomic emission spectrometry
GB/T 13747.4-2020
Methods for chemical analysis of zirconium and zirconium alloys－Part 4：Determination of chromium content—Diphenylcarbazide spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 13747.3-2020
Methods for chemical analysis of zirconium and zirconium alloys－Part 3：Determination of nickel content－Dimethyglyoxime spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 13747.27-2020
Methods for chemical analysis of zirconium and zirconium alloys—Part 27：Determination of trace impurities content—Inductively coupled plasma mass spectrometry
GB/T 15076.2-2019
Methods for chemical analysis of tantalum and niobium—Part 2:Determination of niobium content in tantalum—Inductively coupled plasma atomic emission spectrometry and stratography gravimetry
GB/T 15076.10-2019
Methods for chemical analysis of tantalum and niobium—Part 10:Determination of iron,nickel,chromium,titanium, zirconium,aluminum and manganese contents in niobium—Direct current arc atomic emission spectrometry
GB/T 13747.7-2019
Methods for chemical analysis of zirconium and zirconium alloys—Part 7：Determination of manganese content—Patassium periodate spectrometry and inductively coupled plasma atomic emission spectrometry
GB/T 13747.2-2019
Methods for chemical analysis of zirconium and zirconium alloys—Part 2：Determination of iron content—1,10-phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 13747.12-2019
Methods for chemical analysis of zirconium and zirconium alloys—Part 12：Determination of silicon content—Molybdenum blue spectrophotometry
GB/T 38061-2019
Cerium dioxide nanomaterial
GB/T 18882.3-2019
Chemical analysis methods for mixed rare earth oxide of ion-absorption rare earth ore—Part 3: Determination of silicon dioxide content
GB/T 13558-2019
Dysprosium oxide
GB/T 23524-2019
Method for chemical analysis of petrochemical spent platinum catalyst—Determination of platinum—Inductively coupled plasma atomic emission spectrometry
GB/T 15076.3-2019
Methods for chemical analysis of tantalum and niobium—Part 3：Determination of copper content—Flame atomic absorption spectrometry
GB/T 13747.6-2019
Methods for chemical analysis of zirconium and zirconium alloys—Part 6：Determination of copper content—2,9-Dimethyl-1,10-phenanthroline spectrophotometry
GB/T 13747.5-2019
Methods for chemical analysis of zirconium and zirconium alloys—Part 5：Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry
GB/T 36593-2018
Method for chemical analysis of iridium powder—Determination of silver, gold, palladium, rhodium, ruthenium, lead, platinum, nickel, copper, iron, tin, zinc, magnesium, manganese, aluminum contents —Inductively coupled plasma atomic emission spectrometry
GB/T 36592-2018
Methods for chemical analysis of rhodium—Determination of platinum, ruthenium, iridium, palladium, gold, silver, copper, iron, nickel, aluminum, lead, manganese, magnesium, tin, zinc, silicon contents—Inductively coupled plasma mass spectrometry
GB/T 36590-2018
Method for chemical analysis of high purity silver—Determination of trace impurity elements contents—Glow discharge mass spectrometry