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GB/T 15452-2009 Industrial circulating cooling water - Determination of calcium and magnesium - EDTA titration method (USD) via email in 1-3 business day VALID
GB/T 26322-2010 Examination of nitrite bacteria in industrial circulating cooling water—MPN test (USD) via email in 1-3 business day VALID
HG/T 2159-1991 (USD) via email in 1-3 business day ABOLISHED
GB/T 12154-2008 Analysis of water used in boiler and cooling system - Determination of total aluminium (USD) via email in 1-3 business day VALID
HG/T 4541-2013 Water treatment chemicals—Determination of scale inhibition performance—Limited carbonate method (USD) via email in 1-3 business day VALID
GB/T 31329-2014 Technical specification for saving water of circulating cooling water (USD) via email in 1-3 business day VALID
HG/T 3518-2003 Industrial circulating cooling water-Determination of mercaptobenzo-thiazole (USD) via email in 1-3 business day ABOLISHED
HG 5-1521-1985 (USD) via email in 1-3 business day ABOLISHED
GB/T 16632-1996 Determination of scale inhibition performance of water treatment agents-Calcium carbonate precipitation method via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 12157-2007 Water for industrial circulating cooling system and boiler—Determination of dissolved oxygen (USD) 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 (USD) via email in 1-3 business day VALID
GB/T 15453-2008 Water for industrial circulating cooling system and boiler - Determination of chloride (USD) via email in 1-3 business day ABOLISHED
GB/T 22592-2008 Water treatment reagent - General rules for the determination of pH (USD) via email in 1-3 business day VALID
HG 5-1600-1985 (USD) via email in 1-3 business day ABOLISHED
HG/T 3536-2003 Industrial circulating cooling water-Determination of carbon dioxide for sludge and corrosion produ (USD) via email in 1-3 business day ABOLISHED
GB/T 20780-2006 Industrial circulating cooling water - Determination of carbonate alkalinity (USD) via email in 1-3 business day VALID
HG/T 4324-2012 Pickling solution—Determination of total iron content via email in VALID please email coc@codeofchina.com for quotation
HG 5-1595-1985 (USD) via email in 1-3 business day ABOLISHED
HG 5-1502-1985 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 33086-2016 Water treatment chemical—Determination of arsenic and mercury—Atomic fluorescence spectrometry (USD) via email in 1-3 business day VALID
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