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HG/T 3518-2011 Industrial circulating cooling water—Determination of mercaptobenzo-thiazole via email in VALID please email coc@codeofchina.com for quotation
GB/T 6911-2017 Determination of sulfate in water for industrial circulating cooling system and boiler via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
HG/T 3531-2011 Industrial circulating cooling water—Determination of water for sludge and corrosion products via email in VALID please email coc@codeofchina.com for quotation
GB/T 15453-2018 Determination of chloride in water for industrial circulating cooling system and boiler (USD) via email in 1-3 business day VALID
HG/T 4327-2012 Reclaimed water—Determination of total iron content—Spectrophotometric method via email in VALID please email coc@codeofchina.com for quotation
GB/T 22596-2008 Water treatment chemicals - General method for determination of iron content (USD) via email in 1-3 business day VALID
HG/T 3534-2011 Industrial circulating cooling water—Determination of undissolved material in acid phosphorus ferrum aluminium calcium magnesium zinc and copper for sludge and corrosion products via email in VALID please email coc@codeofchina.com for quotation
GB/T 32107-2015 Code for recirculating cooling water treatment by ozone (USD) via email in 1-3 business day VALID
GB/T 34322-2017 Automatic continuous determination of water quality for boiler and cooling system--Potentiometric titration (USD) via email in 1 business day VALID
GB/T 37905-2019 Reclaimed water quality—Determination of chromium—Voltammetry and polarography (USD) via email in 1 business day VALID
GB/T 18175-2014 Determination of corrosion inhibition performance of water treatment agents—Rotation specimen method (USD) via email in 1-3 business day VALID
HG/T 4207-2011 Examination of heterotrophic bacteria in industrial circulating cooling water-Standard of plate count. via email in VALID please email coc@codeofchina.com for quotation
SY/T 6465-2000 Evaluation methods for foaming agent of drainaging gas recovery (USD) via email in 1-3 business day VALID
GB/T 14637-2007 Industrial circulating cooling water and scale—Determination of copper zinc—Atomic absorption spectrometric method (USD) via email in 1-3 business day VALID
HG/T 2024-2009 Determination of scale inhibition performance of water treatment agents-Bubble method via email in VALID please email coc@codeofchina.com for quotation
GB/T 23836-2009 Determination of molybdate in industrial circulating cooling water - Spectrometric method using thiocyanate (USD) via email in 1-3 business day VALID
HG/T 3609-2000 Principle for water quality analytical methods of industrial circulating cooling water (USD) via email in 1-3 business day
GB/T 31816-2015 Water treatment chemicals—Determination of the molecular weight and molecular weight distribution of polymers—Gel filtration chromatography (USD) via email in 1-3 business day VALID
HG/T 4325-2012 Reclaimed water—Determination of calcium and magnesium—Atomic absorption spectromic method via email in VALID please email coc@codeofchina.com for quotation
GB/T 22593-2008 Water treatment reagent - General rules for the determination of limiting viscosity number (USD) via email in 1-3 business day VALID
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