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GB/T 5195.1-1985 Methods for chemical analysis of fluor-spar; The EDTA volumetric method for the determination of calcium fluoride content (USD) via email in 1-3 business day ABOLISHED
GB/T 5195.3-2006 Fluorspar―Determination of loss in mass at 105℃―Gravimetric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 14952.1-1994 Anodizing of aluminium and its alloys.Assessment of quality of sealed anodic oxide coatings via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 21994.7-2008 Chemical analysis of magnesium fluoride - Part 7: Determination of iron content - Orthophenantholine photometric method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 742-2010 Methods for chemical analysis of gallium oxide Determination of impurities Inductively coupled plasma mass spectrometer method (USD) via email in 1-3 business day VALID
GB/T 14849.6-2014 Methods for chemical analysis of silicon metal—Part 6:Determination of carbon—Infrared absorption method (USD) via email in 1-3 business day VALID
GB/T 6609.3-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of silicon dioxide content-Molybdenum blue photometric method (USD) via email in 1-3 business day VALID
GB/T 6609.17-1986 Methods for chemical analysis of aluminium oxide--The molybdenum blue photometric method for the determination of phosphorus pentoxide content via email in ABOLISHED please email coc@codeofchina.com for quotation
YS/T 244.6-2008 Chemical analysis methods of high purity aluminum Part 6:Determination of silver content by calalyze reaction system of manganese-persulfric acid method (USD) via email in 1-3 business day VALID
YS/T 89-1995 Calcined a-alumina (USD) via email in 1-3 business day ABOLISHED
GB/T 21994.3-2008 Chemical analysis of magnesium fluoride - Part 3: Determination of fluoride content - Distillation-thorium nitrate titration volumetric method (USD) via email in 1-3 business day VALID
YS/T 244.4-2008 Chemical analysis methods of high purity aluminum Part 4:Determination of gallium content by butylrhodamine B photometric method (USD) via email in 1-3 business day VALID
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys—Determination of iron content—Orthopenanthroline spectrophotometric method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 3828.5-1983 (USD) via email in 1-3 business day ABOLISHED
GB/T 6609.30-2009 Chemical analysis methods and determination of physical performance of alumina - Part 30: X-ray fluorescence spectrometric method for the determination centent of trace elements (USD) via email in 1-3 business day VALID
GB/T 21994.6-2008 Chemical analysis of magnesium fluoride - Part 6: Determination of silica content - Molybdenum blue photometric method (USD) via email in 1-3 business day VALID
GB/T 6609.35-2009 Chemical analysis methods and determination of physical performance of alumina - Part 35: Determination of specific surface area by nitrogen adsorption (USD) via email in 1-3 business day VALID
GB/T 6609.2-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of the loss of mass at 1100°C-Gravimetric method (USD) via email in 1-3 business day ABOLISHED
YS/T 535.4-2006 Methods for chemical analysis of sodium fluoride The 1 10-phenanthroline spectrophotometric method for the determination of iron content (USD) via email in 1-3 business day ABOLISHED
GB/T 6609.15-1986 Methods for chemical analysis of aluminium oxide--The ferric thiocyanate photometric method for the determination of chlorine content via email in ABOLISHED please email coc@codeofchina.com for quotation
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