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GB/T 7739.10-2007 Methods for chemical analysis of gold concentrates—Part 10:Determination of antimony contents 120.0 via email in 1~3 business day valid
GB/T 18114.1-2000 Methods for chemical analysis of monazite concentrates-Determination of total rare earth and thorium oxide content 15.0 via email in 1~3 business day abolished
YS/T 231-2007 Tungsten concentrate 90.0 via email in 1~3 business day superseded
GB/T 20899.7-2007 Methods for chemical analysis of gold ores—Part 7:Determination of iron contents 90.0 via email in 1~3 business day valid
YS/T 254.2-1994 Methods for chemical analysis of beryllium concentrates-beryl The EDTA volumetric method for the determination of ferric sesquioxide content 30.0 via email in 1~3 business day abolished
GB/T 20899.1-2007 Methods for chemical analysis of gold ores—Part 1:Determination of gold contents 180.0 via email in 1~3 business day valid
GB/T 20899.11-2007 Methods for chemical analysis of gold ores—Part 11:Determination of arsenic and bismuth contents 90.0 via email in 1~3 business day valid
GB/T 20899.8-2007 Methods for chemical analysis of gold ores—Part 8:Determination of sulfur contents 120.0 via email in 1~3 business day valid
GB/T 20899.5-2007 Methods for chemical analysis of gold ores—Part 5:Determination of lead contents 120.0 via email in 1~3 business day valid
GB/T 20899.6-2007 Methods for chemical analaysis of gold ores—Part 6:Determination of zinc contents 120.0 via email in 1~3 business day valid
GB/T 7739.6-2007 Methods for chemical analysis of gold concentrates—Part 6:Determination of zinc contents 180.0 via email in 1~3 business day valid
YS/T 947-2013 Molybdenum Concentrate Recovered in the Process of Non-ferrous Metal Ore Dressing 120.0 via email in 1~3 business day valid
GB/T 18114.6-2000 Methods for chemical analysis of monazite concentrates-Determination of sillicon oxide content 15.0 via email in 1~3 business day abolished
GB/T 20899.2-2007 Methods for chemical analysis of gold ores—Part 2:Determination of silver contents 90.0 via email in 1~3 business day valid
GB/T 17417.2-2010 Method for chemical analysis of rare earth ores—Part 2:Determination of scandium content 110.0 via email in 1~3 business day valid
YS/T 320-1997 Zinc concentrate 60.0 via email in 1~3 business day abolished
GB/T 7739.1-2007 Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents 60.0 via email in 1 business day valid
YS/T 299-1994 Artificial rutile 15.0 via email in 1~3 business day abolished
YS/T 3005-2011 Methods for sampling and sample preparation of flotation gold concentrates 270.0 via email in 1~3 business day valid
GB/T 7739.4-2007 Methodds for chemical analysis of gold concentrates—Part 4:Determination of copper contents 120.0 via email in 1~3 business day valid
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