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JC/T 850-1999 Methods of chemical analysis of iron correcting materials for cement industry (USD) via email in 1-3 business day ABOLISHED
GB/T 20671.9-2006 Classification system and test methods for nonmetallic gasket materials - Part 9: Standard test method for binder durability of cork composition gasket materials (USD) via email in 1-3 business day VALID
GB/T 5195.2-2006 Fluorspar―Determination of carbonate content via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 14506.16-2010 Methods for chemical analysis of silicate rocks—Part 16:Determination of rubidium content (USD) via email in 1-3 business day VALID
HG/T 2786-1996 (USD) via email in 1-3 business day VALID
GB/T 1873-1995 Phosphate rock and concentrate-Determination of silicon dioxide content-Gravimetric and volumetric methods (USD) via email in 1-3 business day VALID
GB/T 25282-2010 Soil and sediment—Sequential extraction procedure of speciation of 13 trace elements (USD) via email in 1-3 business day VALID
GB/T 5195.15-2017 Fluorspar—Determination of calcium, aluminum, silicon, phosphorus, sulfur, potassium, iron, barium and lead content—Wavelength dispersive X-ray fluorescence spectrometric method via email in VALID please email coc@codeofchina.com for quotation
GB/T 14506.21-2010 Methods for chemical analysis of silicate rocks—Part 21:Determination of nickel and cobalt content (USD) via email in 1-3 business day VALID
GB/T 14506.31-2019 Methods for chemical analysis of silicate rocks—Part 31:Determination of 12 components including silicon dioxide etc.—Lithium metaborate fusion-inductively coupled plasma atomic emission spectrometry (USD) via email in 1-3 business day VALID
GB 24265-2009 Diatomite filter aids (USD) via email in 1-3 business day ABOLISHED
GB/T 14506.20-2010 Methods for chemical analysis of silicate rocks—Part 20:Determination of zinc content (USD) via email in 1-3 business day VALID
GB/T 20671.2-2006 Classification system and test methods for nonmetallic gasket materials - Part 2: Standard test method for compressibility and recovery of gasket materials (USD) via email in 1-3 business day VALID
GB/T 1878-1995 Phosphate rock and concentrate-Determination of iodine content-Spectrophotometric and specific ion electrode methods (USD) via email in 1-3 business day VALID
JC 68-1982 (USD) via email in 1-3 business day ABOLISHED
GB/T 1876-1995 Phosphate rock and concentrate-Determination of carbon dioxide content-Gasometric method (USD) via email in 1-3 business day VALID
GB/T 20671.11-2006 Classification system and test methods for nonmetallic gasket materials - Part 11: Standard practice for determining resistance of synthetic polymeric materials to fungi via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17469-1998 Road vehicles--Brake linings--Evaluation of friction material characteristics--Small sample bench test procedure via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YS/T 387-1994 (USD) via email in 1-3 business day VALID
GB/T 14565-1993 Kaolin clay chemical analysis (USD) via email in 1-3 business day ABOLISHED
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