GB/T 31329-2025 Technical specification for water-saving in circulating cooling water system

GB/T 31329-2014 Technical specification for saving water of circulating cooling water

GB/T 6911-2007 Water for industrial circulating cooling system and boiler—Determination of sulfate GB/T 6911-2017 Determination of sulfate in water for industrial circulating cooling system and boiler GB/T 6911.1-1986 Methods for analysis ofwater for boiler and for cooling--The determination of sulfate--Gravimetric method GB/T 6911.2-1986 Methods for analysis of water for boiler and for cooling--The determination of sulfate--Photometric method as barium chromate GB/T 6911.3-1986 Methods for analysis of water for boiler and for cooling--The determination of sulfate--Potentiometric titration method GB/T 6913-2008 Analysis of water used in boiler and cooling system—Determination of phosphorus GB/T 6913-2023 Analysis of water used in boiler and cooling system—Determination of phosphate GB/T 6913.1-1986 Methods for analysis of water for boiler and for cooling—The determination of phosphates—Orthophosphates GB/T 6913.2-1986 Methods for analysis of water for boiler and for cooling—The determination of phosphates—Total inorganic phosphates GB/T 6913.3-1986 Methods for analysis of water for boiler and for cooling—The determination of phosphates—Total phosphates GB/T 6913.4-1993 Analysis of water used in boiler and cooling system Determination of phosphate GB/T 14415-1993 Analysis of water used in boiler and cooling system—Determination of solids matter GB/T 14415-2007 Water for industrial circulating cooling system and boiler—Determination of solids matter GB/T 14424-1993 Analysis of water used in boiler and cooling system—Determination of free chlorine residuals GB/T 14424-2008 Industrial circulating cooling water—Determination of residual chlorine GB/T 14427-1993 Analysis of water used in boiler and cooling system—Determination of iron GB/T 14427-2008 Analysis of water used in boiler and cooling system—Determination of iron GB/T 14427-2017 Analysis of water used in boiler and cooling system—Determination of iron GB/T 14643.1-1993 Industrial circulating cooling water—Examination of bacteria formed deposits—Standard of plate count GB/T 14643.1-2009 Examination of bacteria and algae in industrial circulating cooling water—Part 1:Examination of bacteria formed deposits—Standard of plate count GB/T 15451-1995 Industrial circulating cooling water—Determination of alkalinity GB/T 15451-2006 Industrial circulating cooling water—Determination of total and composite alkalinity GB/T 15452-1995 Industrial circulating cooling water—Determination of calcium and magnesium— EDTA titration method GB/T 15452-2009 Industrial circulating cooling water—Determination of calcium and magnesium—EDTA titration method GB/T 15453-1995 Industrial circulating cooling water—Determination of chloride—Silver nitrate titration method GB/T 15453-2008 Water for industrial circulating cooling system and boiler—Determination of chloride GB/T 15453-2018 Determination of chloride in water for industrial circulating cooling system and boiler GB/T 15456-1995 Industrial circulating cooling water—Determination of the chemical oxygen demand —Potassium permanganate method GB/T 15456-2008 Industrial circulating cooling water—Determination of the chemical oxygen demand—Potassium permanganate method GB/T 15456-2019 Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method GB/T 15893.1-1995 Industrial circulating cooling water—Determination of turbidity—Diffused radiation method GB/T 15893.1-2014 Industrial circulating cooling water—Determination of turbidity—Diffused radiation method GB/T 16632-1996 Determination of scale inhibition performance of water treatment agents—Calcium carbonate precipitation method GB/T 16632-2008 Determination of scale inhibition performance of water treatment agents—Calcium carbonate precipitation method GB/T 16632-2019 Determination of scale inhibition performance of water treatment chemicals—Calcium carbonate precipitation method GB/T 17167-1997 Guides for providing and managing of the measuring instruments of energy in enterprise GB 17167-2006 General principle for equipping and managing of the measuring instrument of energy in organization of energy using GB 17167-2025 General rules for energy measuring instrument equipping and managing of energy user GB/T 18175-2000 Determination of corrosion inhibition performance of water treatment agents—Rotation specimen method GB/T 18175-2014 Determination of corrosion inhibition performance of water treatment agents—Rotation specimen method GB/T 21534-2008 Industrial water usage and conservation—Terminology GB/T 21534-2021 Water saving—Terminology GB/T 22592-2008 Water treatment reagent—General rules for the determination of pH GB/T 23838-2009 Determination of suspended solids of industrial circulating cooling water GB/T 50050-2017 Code for design of industrial recirculating cooling water treatment HG/T 2160-2008 Cooling Water Dynamic Simulation Test Method HG/T 2160-1991 HG/T 2160-1991 Cooling Water Dynamic Simulation Test Method HG/T 2160-2024 HG/T 2160-2024 Cooling Water Dynamic Simulation Test Method HG/T 3778-2005 Technical regulations for chemical cleaning and prefilming of cooling water system HG/T 4207-2011 Industrial circulating cooling water heterotrophic bacteria count determination using Petri dish counting method HJ 505-2009 Water quality: Determination of Biochemical Oxygen Demand (BOD5) by Dilution and Inoculation Method HJ 537-2009 Determination of Ammonia Nitrogen in Water - Distillation-Neutralization Titration MethodHJ 537-2009 Water Quality HJ 637-2012 Water quality determination of oil and animal/vegetable fats by infrared spectrophotometry HJ 637-2018 Water quality determination of oil and animal/vegetable fats by infrared spectrophotometry