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GB/T 14506.6-2010 Methods for chemical analysis of silicate rocks—Part 6:Determination of calcium oxide content 180.0 via email in 1~3 business day valid
GB/T 14506.1-2010 Methods for chemical analysis of silicate rocks—Part 1:Determination of hygroscopic water content 120.0 via email in 1~3 business day valid
GB/T 14506.23-2010 Methods for chemical analysis of silicate rocks—Part 23:Determination of chromium content 180.0 via email in 1~3 business day valid
GB/T 14506.23-1993 Silicate rocks--Determination of chromium 75.0 via email in 1~3 business day abolished
GB/T 14506.28-2010 Methods for chemical analysis of silicate rocks—Part 28:Determination of 16 major and minor elements content 180.0 via email in 1~3 business day valid
GB/T 14506.11-2010 Methods for chemical analysis of silicate rocks—Part 11:Determination of potassium oxide and sodium oxide content 180.0 via email in 1~3 business day valid
GB/T 14506.14-2010 Methods for chemical analysis of silicate rocks—Part 14:Determination of ferrous oxide content 120.0 via email in 1~3 business day valid
SN/T 0485.2-1995 Methods for analysis of silicon dioxide content in talc for export - Polyepoxyethane coagulation gravimetric method-molybdenum blue spectrophotometry method for filtrate 45.0 via email in 1~3 business day abolished
JC/T 929-2003 Pyrophyllite 75.0 via email in 1~3 business day valid
GB/T 3521-1995 Method for chemical analysis of graphite 105.0 via email in 1~3 business day superseded
GB/T 14506.29-2010 Methods for chemical analysis of silicate rocks—Part 29:Determination of 22 elements including rare earth elements 210.0 via email in 1~3 business day valid
GB/T 14506.12-1993 Sillicate rocks. Determination of fluorine content. Ion selective electrode method 45.0 via email in 1~3 business day abolished
GB/T 14506.17-2010 Methods for chemical analysis of silicate rocks—Part 17:Determination of strontium content 120.0 via email in 1~3 business day valid
GB/T 14506.9-2010 Methods for chemical analysis of silicate rocks—Part 9:Determination of phosphorus pentoxide content 180.0 via email in 1~3 business day valid
SN/T 0770-1999 Determination of silicon oxide in middle carbon flake graphite—Molybdenum blue photometric method 75.0 via email in 1~3 business day valid
QB/T 1641-1992 Chemical Analysis Method of Gypsum for Ceramics 150.0 via email in 1~3 business day valid
GB/T 14506.22-2010 Methods for chemical analysis of silicate rocks—Part 22:Determination of vanadium content 240.0 via email in 1~3 business day valid
SN/T 0830-1999 Methods for sampling and sample preparation of talc powder in bags for export 75.0 via email in 1~3 business day abolished
GB/T 14506.2-1993 Sillicate rocks. Determination of combined water content. Gravimetric method 30.0 via email in 1~3 business day abolished
GB/T 14506.7-2010 Methods for chemical analysis of silicate rocks—Part 7:Determination of magnesium oxide content 180.0 via email in 1~3 business day valid
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