GB/T 34241-2017 Spiral wound composite polyamide reverse osmosis membrane element

GB/T 20103-2006 Technical terms for membrane separation 生活饮用水输配水设备及防护材料卫生安全评价规范(卫法监发[2001]161号） GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 6908-2005 Analysis of water used in boil and cooling system—The determination of electrical conductivity for water GB/T 6908-2008 Analysis of water used in boil and cooling system—Determination of electrical conductivity GB/T 6908-2018 Analysis of water used in boiler and cooling system—Determination of electrical conductivity GB/T 9174-1988 General specification for transport packages of general cargo GB/T 9174-2008 General specification for transport packages of general cargo 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 191-2025 Graphical symbols marking for handling and storage of packages