Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 9741-2008 Chemical reagent - General method for the determination of residue after ignition 120.0 via email in 1~3 business day valid
SY/T 5280-2000 General technical conditions for crude oil demulsifiers 90.0 via email in 1~3 business day valid
GB/T 9735-1988 Chemical reagent-General method for the determination of heavy metals 30.0 via email in 1~3 business day superseded
GB/T 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen 40.0 via email in 1 business day valid
GB/T 6912.1-1986 Methods for analysis of water for boiler and for cooling; The determination of nitrates and nitrites; Ultraviolet spectrophotometry for nitrates 15.0 via email in 1~3 business day abolished
GB/T 9722-1988 Chemical reagent-General rules for the gas chromatography 150.0 via email in 1~3 business day superseded
GB/T 9723-2007 Chemical Reagent - General Rule for Flame Atomic Absorption Spectrometry Analysis 60.0 via email in 1 business day valid
GB/T 9736-2008 Chemical reagent - General method for the determination of acidity and alkalinity 120.0 via email in 1~3 business day valid
GB/T 9724-2007 Chemical reagent—General rule for the determination of pH 40.0 via email in 1 business day valid
GB 9725-1988 Chemical reagent-General rules for potentiometric titration 90.0 via email in 1~3 business day superseded
GB/T 9729-1988 Chemical reagent-General method for the determination of chloride 30.0 via email in 1~3 business day superseded
GB/T 6913.2-1986 Methods for analysis of water for boiler and for cooling; The determination of phosphates; Total inorganic phosphates 15.0 via email in 1~3 business day superseded
HG/T 4297-2012 The Guide for Drafting in Report of Gas Reference Materials 90.0 via email in 1~3 business day valid
GB/T 9728-1988 Chemical reagent-General method for the determination of sulphate 7.5 via email in 1~3 business day superseded
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods 60.0 via email in 1 business day valid
GB/T 9726-2007 Chemical reagent—General rule for the determination of permanganate-reducing substances 120.0 via email in 1~3 business day valid
HG/T 3501-2011 Chemical reagent-Determination of the effective plate number of solid support in a gas chromatography 60.0 via email in 1~3 business day valid
HG/T 3775-2005 Feed grade cobalt sulfate 90.0 via email in 1~3 business day valid
GB/T 617-1988 Chemical reagent-General method for the determination of melting range 45.0 via email in 1~3 business day superseded
GB/T 9730-1988 Chemical reagent-General method for the determination of oxalates 30.0 via email in 1~3 business day superseded
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