Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YS/T 281.3-1994 Cobalt -- Determination of silicon content -- Molybdenum blue spectrophotometric method 30.0 via email in 1~3 business day abolished
HB 6731.11-2005 Methods for spectrometric analysis of aluminium alloys - Part 11: Determination of beryllium content by flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 981.4-2014 105.0 via email in 1~3 business day valid
YS/T 645-2007 Method for analysis of gold compounds determination of gold content potentiometric titration using ferrous sulfate 60.0 via email in 1~3 business day valid
YS/T 445-2001 Methods for Chemical Analysis of Silver Concentrates 210.0 via email in 1~3 business day valid
GB/T 6524-2003 Metallic powders—Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement 210.0 via email in 1~3 business day valid
YS/T 227.1-1994 Determination of bismuth content in tellurium--Potassium iodide brucine photometric method 15.0 via email in 1~3 business day abolished
YS/T 37.3-1992 45.0 via email in 1~3 business day abolished
GB/T 25934.3-2010 Methods for chemical analysis of high - purity gold - Part 3: Ethylether extraction separation - Inductively coupled plasma-atomic emission spectrometry - Determinaion of impurity e 180.0 via email in 1~3 business day valid
YS/T 475.2-2005 Methods for chemical analysis of cast bearing metals - Determination of lead content - EDTA titrimetric method 75.0 via email in 1~3 business day valid
YS/T 746.4-2010 Methods for chemical analysis of lead-free tin-based solders—Part 4:Determination of lead content—Flame atomic absorption spectrometric method 180.0 via email in 1~3 business day valid
GB/T 24213-2009 General rules for original position statistic distribution analysis method 180.0 via email in 1~3 business day valid
HB 5219.7-1998 Methods for Chemical Analysis of Magnesium Alloy- Determination of Manganese Content (Excluding Zirconium and Rare Earth) with Potassium Periodate Spectrophotometric Method 45.0 via email in 1~3 business day valid
GB/T 12689.3-2004 The methods for chemical analysis of zinc and zinc alloys—The determination of cadmium content—The flame atomic sbsorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 37.4-1992 75.0 via email in 1~3 business day abolished
GB/T 20255.6-2008 Methods for chemical analysis of hardmetals - Flame atomic absorption spectrometry - General requirements 90.0 via email in 1~3 business day valid
HB 7716.13-2002 Spectrometric analysis of titanium alloys Part 13: Determination of aluminum chromium copper molybdenum manganese neodymium tin vanadium zirconium content -- Inductively coupled plasma atomic emission spectrometric method 105.0 via email in 1~3 business day valid
HB 6731.3-2005 Methods for spectrometric analysis of aluminium alloys -- Part 3:Determination of zinc content by flame atomic absorption spectrometric method 90.0 via email in 1~3 business day valid
YS/T 281.10-1994 Cobalt -- Determination of nickel content -- Flame atomic absorption spectrophotometric method 60.0 via email in 1~3 business day abolished
GB/T 4296-1984 Magnesium alloy wrought products--Microstructure--Inspection method via email in business day superseded
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