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SN 0065.2-1992 Method for determination of ignition loss for export Europium-Rich Yttrium-Rich Sm-Eu-Gd oxides―Gravimetric method 30.0 via email in 1~3 business day abolished
YB/T 159.4-1999 Methods for chemical analysis of titanium concentrate(rock minerals)—The bismuth phosphomoly-bdate blue spestrophotometric method for the determination of phosphorus content 75.0 via email in 1~3 business day superseded
GB/T 1819.1-2004 Methods for chemical analysis of tin concentrates - Determination of water content - The weighing method 30.0 via email in 1~3 business day valid
GB 3258.3-1982 30.0 via email in 1~3 business day valid
GB/T 8152.2-1987 Methods for chemical analysis of lead concentrates; The Na2 EDTA volumetric method for the determination of zinc content 30.0 via email in 1~3 business day superseded
GB/T 8152.7-2006 Methods for chemical analysis of lead concentrates - Determination of copper content - Flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
GB/T 8152.3-2006 Methods for chemical analysis of lead concentrates - Determination of aluminium(III) oxide content - Chromazurol S spectrophotometric method 60.0 via email in 1~3 business day valid
GB 3258.1-1982 15.0 via email in 1~3 business day superseded
YS/T 452-2002 Lead & zine bulk concentrate 60.0 via email in 1~3 business day superseded
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S spectrophotometric method for the determination of aluminium (3) oxide content 30.0 via email in 1~3 business day superseded
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 60.0 via email in 1~3 business day valid
YS/T 240.5-1994 C 15.0 via email in 1~3 business day superseded
GB/T 1822-1979 Determination of copper content in tin concentrates;Biscyclohexanone oxalyl-dihydrazone photometric method 45.0 via email in 1~3 business day superseded
GB 3258.12-1982 45.0 via email in 1~3 business day valid
YS/T 240.1-1994 Chemical analysis of bismuth concentrate 15.0 via email in 1~3 business day superseded
GB/T 1819.9-2004 Methods for chemical analysis of tin concentrates - Determination of tungsten trioxide content - The thiocyanate spectrophotometric meethod 45.0 via email in 1~3 business day valid
YB/T 159.2-1999 Methods for chemical analysis of titanium concentrate(rock minerals)—The titanium chloride-potassium dichromate volumetric method for the determination of total iron content 60.0 via email in 1~3 business day superseded
GB/T 1831-1979 Determination of silicon dioxide content in tin concentrates--Silicon molybdenum blue photometric method via email in business day superseded
GB/T 1823-1979 Determination of lead content in tin concentrates via email in business day superseded
GB/T 1819.6-2004 Methods for chemical analysis of tin concentrates - Determination of antimony content - The malachite green spectrometric method and the flame atomic absorption spectrometric method 60.0 via email in 1~3 business day valid
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