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YS/T 1115.3-2016 Methods for chemical analysis of copper ores and tailings—Part 3:Determination of zinc content—Flame atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
GB 1361-1978 Analytical methods of iron ores-Generality and common rules (USD) via email in 1-3 business day ABOLISHED
YS/T 96-1996 (USD) via email in 1-3 business day ABOLISHED
GB/T 4102.8-1983 Methods for chemical analysis of high-titanium slag and rutile;The EDTA volumetric method for the determination of aluminium oxide content (USD) via email in 1-3 business day ABOLISHED
GB/T 1819.5-2004 Methods for chemical analysis of tin concentrates—Determination of arsenic content—The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodimetric titrimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 575.15-2006 Methods for chemical analysis of bauxite -- Determination of gallium oxide content -- Rhodamine B-extraction photometric method (USD) via email in 1-3 business day ABOLISHED
YS/T 240.3-1994 C (USD) via email in 1-3 business day ABOLISHED
GB 6730.37-1986 Methods for chemical analysis of iron ores; The 4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content (USD) via email in 1-3 business day ABOLISHED
GB/T 15922-1995 Method for chemical analysis of cobalt ores—Determination of cobalt content—Flame atomic absorption spectrometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14352.18-1993 Methods for chemical analysis of tungsten ores molybdenum ores. Determination of rhenium content-Potassium thiocynate photometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 14353.11-2010 Methods for chemical analysis of copper ores lead ores and zinc ores - Part 11: Determination of silver content (USD) via email in 1-3 business day VALID
GB/T 1819.4-2004 Methods for chemical analysis of tin concentrates—Determination of lead content—Flame atomic absorption spectrometric method and EDTA titrimetric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17418.3-1998 Methods for analysis of noble metals in geochemcial samples-Determination of palladium content-Preconcentratoin by thiourea-Graphite furnace atomic absorption spectrophotometric method (USD) via email in 1-3 business day ABOLISHED
GB/T 8152.3-1987 Methods for chemical analysis of lead concentrates; The chromazurol S spectrophotometric method for the determination of aluminium (3) oxide content (USD) via email in 1-3 business day ABOLISHED
GB/T 15926-1995 Method for chemical analysis of bismuth ores—Determination of bismuth content—EDTA volumetric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 6150.3-1985 Methods for chemical analysis of tungsten concentrates; The salicylfluorone-tetradecyl pyridine chloride photometric method for the determination of tin content (USD) via email in 1-3 business day ABOLISHED
GB/T 8152.2-2006 Methods for chemical analysis of lead concentrates―Determination of lead content―Back titration of EDTA after precipitation of lead sulfate via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 1050.8-2015 Methods for chemical analysis of lead antimony concentrates—Part 8:Determination of gold and silver contents—Fire assay method (USD) via email in 1-3 business day VALID
GB/T 15924-2010 Method for chemical analysis of tin ores—Determination of tin content—Iodometric method (USD) via email in 1-3 business day VALID
YB/T 4031-1991 (USD) via email in 1-3 business day ABOLISHED
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