Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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QJ A 2781-2004 QJ A 2781-2004 Determination of the Carbon Content the Hydrogen Content and the Nitrogen Content of Carbonaceous Material 720.0 via email in 1~5 business day valid
GB/T 29189-2012 Thermo gravimetric analysis(TGA)for determination of oxidation temperature and ash content of carbon nanotubes 170.0 via email in 1~3 business day valid
GB/T 1427-2000 method of carbon material 75.0 via email in 1~3 business day abolished
GB 6156-1985 Carbon materials-Determination of the true porosity 15.0 via email in 1~3 business day abolished
YB/T 5156-1993 Determination of silicon in graphite products of high purity by silicon-molybdenum blue photometric method 30.0 via email in 1~3 business day abolished
GB/T 1427-2016 Sampling method for carbon material 150.0 via email in 1~3 business day valid
YB/T 5158-1993 Determination of trace boron in graphite products of high purity by spectroscopical method―The solution and dry residue method 30.0 via email in 1~3 business day abolished
GB/T 6717-1986 Method for determination of specific resistance of carbon materials 220.0 via email in business day valid
YB/T 5159-2007 Determination of silicon and iron in graphite products of high purity by spectroscopical method - The powder method 45.0 via email in 1~3 business day valid
YB/T 120-1997 Method for determination of specific resistance of carbon materials 60.0 via email in 1~3 business day abolished
YB/T 917-1997 Carbonaceous materials - Determination of vanadium content - Colorimetric method 30.0 via email in 1~3 business day valid
GB/T 1429-1985 Carbon materials; determination of the ash content 15.0 via email in 1~3 business day superseded
YB/T 5160-1993 Method for electrolytical testing of cathode carbon bricks used in the aluminium electrolytical cell 45.0 via email in 1~3 business day abolished
GB 6714-1986 30.0 via email in 1~3 business day superseded
GB 6716-1986 45.0 via email in 1~3 business day superseded
GB 6712-1986 30.0 via email in 1~3 business day superseded
GB 6715-1986 30.0 via email in 1~3 business day superseded
GB/T 9973-1988 Test method for the permeability of carbon materials 90.0 via email in 1~3 business day superseded
GB/T 8718-2008 The terms of carbon materials 600.0 via email in 1~3 business day valid
QJ 2781A-2004 Determination of the carbon content the hydrogen content and the nitrogen content of carbonaceous material 90.0 via email in 1~3 business day valid
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