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GB/T 14506.20-2010 Methods for chemical analysis of silicate rocks—Part 20:Determination of zinc content 180.0 via email in 1~3 business day valid
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 14506.26-1993 Silicate rocks. Determination of cobalt content. 4-[(5-Chtoro-2-pyridyl)-azo]-1,3-diamino benzene photometric method 30.0 via email in 1~3 business day superseded
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 14506.5-2010 Methods for chemical analysis of silicate rocks—Part 5:Determination of ferric oxide content 240.0 via email in 1~3 business day valid
GB/T 14506.27-1993 Silicate rocks. Determination of nicket content. a,a-Furil dioxime photometric method 30.0 via email in 1~3 business day superseded
GB/T 14506.23-1993 Silicate rocks--Determination of chromium 75.0 via email in 1~3 business day superseded
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 850-1999 Methods of chemical analysis of iron correcting materials for cement industry 240.0 via email in 1~3 business day superseded
GB/T 14506.3-2010 Methods for chemical analysis of silicate rocks—Part 3:Determination of silicon dioxide content 180.0 via email in 1~3 business day valid
GB/T 14506.21-1993 Sillicate rocks. Determination of nickel and cobalt content. Ammonium hydroxide-ammonium chloride-sulfosalicylic acid-dimethyl glyoxime medium polarographic method 45.0 via email in 1~3 business day superseded
GB/T 14506.2-2010 Methods for chemical analysis of silicate rocks—Part 2:Determination of combined water content 120.0 via email in 1~3 business day valid
JC/T 929-2003 Pyrophyllite 75.0 via email in 1~3 business day valid
GB/T 14506.26-2010 Methods for chemical analysis of silicate rocks—Part 26:Determination of cobalt content 120.0 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
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