Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 3391-2002 Ethylene for industrial use-Determination of hydrocarbon impurities-Gas chromatographic method 90.0 via email in 1~3 business day valid
SH/T 1612.2-1995 Determination for acid value of industrial purified terephthalic acid 90.0 via email in 1~3 business day valid
YB/T 4021-2007 Determination of Total Sulphur in Naphthalene - Reduction Titration 120.0 via email in 1~3 business day valid
GB 1816-1979 via email in business day superseded
GB/T 32159-2015 Coking pure pyridine 105.0 via email in 1~3 business day valid
GB 3209-1982 Method for determining the amount of distillation residual of benzene;Type products 30.0 via email in 1~3 business day valid
SH/T 1548-2004 1-Butene for industrial use -- Determination of trace propadience and propyne -- Gas chromatographic method 90.0 via email in 1~3 business day valid
GB 394-1981 105.0 via email in 1~3 business day superseded
GB/T 30921.3-2016 105.0 via email in 1~3 business day valid
GB/T 14571.3-1993 Ethylene glycol for industrial use. Determination of content of total aldehydes present. Spectrophotometric method 30.0 via email in 1~3 business day abolished
SH/T 1744-2004 Cumene (Isopropyl benzene) for industrial use -- Specification 75.0 via email in 1~3 business day valid
SH/T 1494-2009 of Carbonyls In C4 Hydrocarbons-Volumetric Method 120.0 via email in 1~3 business day valid
GB/T 1815-1997 Determination for the bromine number of benzole products 30.0 via email in 1~3 business day valid
GB/T 3405-2011 Petroleum benzene 100.0 via email in 1~2 business day valid
GB/T 30921.4-2016 105.0 via email in 1~3 business day valid
GB/T 2000-2000 Coking solid products--Sampling 120.0 via email in 1~3 business day valid
GB 3402-1982 75.0 via email in 1~3 business day superseded
SH/T 1766.2-2008 Petroleum m-Xylene-Determination of purity and hydrocarbon impurities-Gas chromatographic method 120.0 via email in 1~3 business day valid
SH/T 1547-2004 1-Butene for industrial use - Determination of trace methanol and methyl tert-butyl ether - Gas chromatographic method 90.0 via email in 1~3 business day valid
GB/T 2013-1980 Method for determination density of benzene products 15.0 via email in 1~3 business day superseded
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