Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 22595-2008 Test method for efficacy of antimicrobials - Aerobic bacteria 160.0 via email in 1~3 business day valid
HG/T 3532-2011 Industrial circulating cooling water—Determination of ferrous sulphide for sludge and corrosion products 170.0 via email in business day valid
GB/T 15452-2009 Industrial circulating cooling water - Determination of calcium and magnesium - EDTA titration method 90.0 via email in 1~3 business day valid
GB/T 26322-2010 Examination of nitrite bacteria in industrial circulating cooling water—MPN test 180.0 via email in 1~3 business day valid
HG/T 3520-2000 Industrial circulating cooling water Determination of calcium for phosphorus-zine prefilmingtluid 45.0 via email in 1~3 business day superseded
GB/T 23838-2009 Determination of suspended solids of industrial circulating cooling water 180.0 via email in 1~3 business day valid
GB/T 16881-2008 Coagulation-Deposition jar test of water 75.0 via email in 1~3 business day valid
GB/T 15454-1995 Industrial circulating cooling water-Determination of sodium, ammonium, potassium, magnesium and calcium-Ions chromatography 105.0 via email in 1~3 business day abolished
GB/T 20780-2006 Industrial circulating cooling water - Determination of carbonate alkalinity 60.0 via email in 1~3 business day valid
HG/T 3523-2008 Tecnical conditions of standard corrosion spool of chemical treatment in cooling water 75.0 via email in 1~3 business day valid
HG/T 4327-2012 Reclaimed water—Determination of total iron content—Spectrophotometric method 90.0 via email in 1~3 business day valid
GB/T 14643.5-2009 Examination of bacteria and algae in industrial circulating cooling water - Part 5: Examination of sulfate-reducing bacteria - MPN test 180.0 via email in 1~3 business day valid
HG/T 4325-2012 Reclaimed water—Determination of calcium and magnesium—Atomic absorption spectromic method 90.0 via email in 1~3 business day valid
GB/T 6912-2008 Analysis of water used in boiler and cooling system - Determination of nitrite 90.0 via email in 1~3 business day valid
GB/T 22594-2008 Water treatment reagent - General rules for the determination of density 110.0 via email in 1~3 business day valid
GB/T 6904-2008 Water used in industrial circulating cooling system and boiler - Determination of pH 60.0 via email in 1~3 business day valid
GB/T 14422-2008 Analysis of water used in boiler and cooling system - Determination of benzotriazole 75.0 via email in 1~3 business day valid
GB/T 31329-2014 Technical specification for saving water of circulating cooling water 210.0 via email in 1~3 business day valid
GB/T 16632-1996 Determination of scale inhibition performance of water treatment agents-Calcium carbonate precipitation method 75.0 via email in 1~3 business day abolished
GB/T 12157-2007 Water for industrial circulating cooling system and boiler—Determination of dissolved oxygen 80.0 via email in 1 business day valid
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