YS/T Standards
Found: 2371 — page 47 of 50
Valid
YS/T 248.3-2007 — Methods for chemical analysis of crude lead. Determination of antimony content. Flame atomic absorption spectrometric method
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YS/T 248.4-2007 — Methods for chemical analysis of crude lead. Determination of arsenic content. Molybdoantimonyarsenate blue photometric method and Extraction-iodometric method
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Valid
YS/T 248.5-2007 — Methods for chemical analysis of crude lead. Determination of copper content. Flame atomic absorption spectrometric method
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Valid
YS/T 248.6-2007 — Methods for chemical analysis of crude lead. Determination of gold and silver content. Fire-assaying method
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Valid
YS/T 248.7-2007 — Methods for chemical analysis of crude lead. Determination of silver content. Flame atomic absorption spectrometric method
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YS/T 248.8-2007 — Methods for chemical analysis of crude lead. Determination of zinc content. Flame atomic absorption spectrometric method
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Valid
YS/T 248.9-2007 — Methods for chemical analysis of crude lead. Determination of bismuth content. Flame atomic absorption spectrometric method
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Valid
YS/T 252.1-2007 — Methods for chemical analysis of nickel matte. Determination of nickel content. Dimethylglyoxime gravimetric method
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Valid
YS/T 252.2-2007 — Methods for chemical analysis of nickel matte. Determination of iron content. Sulfosalicylic acid phototmetric method
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Valid
YS/T 252.3-2007 — Methods for chemical analysis of nickel matte. Determination of cobalt content. Flame atomic absorption spectrometric method
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Valid
YS/T 252.4-2007 — Methods for chemical analysis of nickel matte. Determination of copper content. Sodium thiosulphate titrimetric method
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Valid
YS/T 252.5-2007 — Methods for chemical analysis of nickel matte. Determination of sulfur content. Combustion-neutralization titrimetric method
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Valid
YS/T 394-2007 — Tantalum concentrate
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Valid
YS/T 520.1-2007 — Chemical analysis of gallium. Part 1: Determination of copper content. The 2, 9-dimethy-4, 7-diphenyl-1, 10-phenanthroline spectrophotometric method
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Valid
YS/T 520.10-2007 — Chemical analysis of gallium. Part 10: Determination of zine content. The atomic absorption spectral method
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Valid
YS/T 520.11-2007 — Chemical analysis of gallium. Part 11: Determination of mercury content. The cold vapor atomic absorption spectral method
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Valid
YS/T 520.12-2007 — Chemical analysis of gallium. Part 12: Determination of lead, coper, nickel, aluminum, indium and zinc content. The spectrochemical method
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Valid
YS/T 520.2-2007 — Chemical analysis of gallium. Part 2: Determination of lead content. The 4-(2-pyridy lazo)-resorcinol spectrophotometric method
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Valid
YS/T 520.3-2007 — Chemical analysis of gallium. Part 3: Determination of aluminum content. The chromazurol S-tetradecyl pyridine bromide spectrophotometric method
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Valid
YS/T 520.4-2007 — Chemical analysis of gallium. Part 4: Determination of iron content. The 4, 7-diphenyl-1, 10-phenanthroline spectrophotometric method
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Valid
YS/T 520.5-2007 — Chemical analysis of gallium. Part 5: Determination of calcium content. The N2O-C2H2 falme atomic absorption spectral method
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Valid
YS/T 520.6-2007 — Chemical analysis of gallium. Part 6: Determination of tin content. The salicylfluorone cetylrimethylammonium bromide spectrophotometric method
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Valid
YS/T 520.7-2007 — Chemical analysis of gallium. Part 7: Determination of silicon content. The extraction-molybdenum blue spectrophotometric method
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Valid
YS/T 520.8-2007 — Chemical analysis of gallium. Part 8: Determination of indium content. The ethyl violet spectrophotometric method
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Valid
YS/T 520.9-2007 — Chemical analysis of gallium. Part 9: Determination of germanium content. The phenylfluorone-polyethylene glycol octyl phenyl ether extraction spectrophotometric method
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Valid
YS/T 534.1-2007 — Chemical analysis methods of aluminium hydroxide. Part 1: Determination of moisture. Gravimetric method
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Valid
YS/T 534.2-2007 — Chemical analysis methods of aluminium hydroxide. Part 2: Determination of the loss of mass at 1100 Celsius. Gravimetric method
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Valid
YS/T 534.3-2007 — Chemical analysis methods of aluminium hydroxide. Part 3: Determination of silicon dioxide content. Molybdenum blue photometric method
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Valid
YS/T 534.4-2007 — Chemical analysis methods of aluminium hydroxide. Part 4: Determination of iron oxide content. Orthophenanthroline photometric method
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Valid
YS/T 534.5-2007 — Chemical analysis methods of aluminium hydroxide. Part 5: Determination of sodium oxide content
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Valid
YS/T 547-2007 — High-pure tantalum pentoxide
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Valid
YS/T 548-2007 — High-pure niobium pentoxide
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Valid
YS/T 554-2007 — Lithium niobate single crystals
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Valid
YS/T 560-2007 — sting aluminium anodic bar
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Valid
YS/T 575.1-2007 — Methods for chemical analysis of bauxite - Part 1: Determination of aluminium oxide content - EDTA titrimetric method
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Valid
YS/T 575.10-2007 — Methods for chemical analysis of bauxite. Part10: Determination of manganese oxide content. Flame atomic absorption spectrophotometric method
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Valid
YS/T 575.11-2007 — Methods for chemical analysis of bauxite. Part 11: Determination of chromium oxide content. Flame atomic absorption spectrophotometric method
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Valid
YS/T 575.12-2007 — Methods for chemical analysis of bauxite - Part 12: Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric method
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Valid
YS/T 575.13-2007 — Methods for chemical analysis of bauxite. Part 13: Determination of zinc content. Flame atomic absorption spectrophotometric method
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Valid
YS/T 575.15-2007 — Methods for chemical analysis of bauxite. Part 15: Determination of gallium oxide content. Rhodamine B-extraction photometric method
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Valid
YS/T 575.16-2007 — Methods for chemical analysis of bauxite. Part 16: Determination of phosphorus pentoxide content. Molybdenum blue spectrophotometric method
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Valid
YS/T 575.17-2007 — Methods for chemical analysis of bauxite. Part 17: Determination of sulfur content. Direct combustion-iodometric method
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Valid
YS/T 575.18-2007 — Methods for chemical analysis of bauxite. Part 18: Determination of total carbon content. Non-aqueous titrimetric method after combustion
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Valid
YS/T 575.2-2007 — Methods for chemical analysis of bauxite. Part 2: Determination of silicon dioxide content. Gravimetric-molybdenum blue photometric method
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Valid
YS/T 575.3-2007 — Methods for chemical analysis of bauxite. Part 3: Determination of silicon dioxide content. Molybdenum blue photometric method
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Valid
YS/T 575.4-2007 — Methods for chemical analysis of bauxite. Part 4: Determination of iron oxide content. Dichromate titrimetric method
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Valid
YS/T 575.5-2007 — Methods for chemical analysis of bauxite. Part 5: Determination of iron oxide content. Orthophenanthroline photometric method
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Valid
YS/T 575.6-2007 — Methods for chemical analysis of bauxite. Part 6: Determination of titanium dioxide content. Diantipyrylmethane photometric method
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