GB/T 40258-2021 Evaluation method for corrosion resistance of hollow fiber membrane to chemical cleaning agent

GB/T 32095.3-2015 Performance and test methods of non-stick surface of domestic metal utensils for household food—Part 3:Test specification of corrosion resistance GB/T 32360-2015 Test methods for ultrafiltration membranes GB/T 32361-2015 Test methods for pore size properties of membrane filters—Bubble point and mean flow pore test GB/T 38908-2020 Test methods for chlorine resistance performance of household reverse osmosis and nanofiltration membrane elements GB/T 38949-2020 Determination of pore size for porous membranes—Standard particle method CJ/T 530-2018 Submerged hollow fiber ultrafiltration membrane modules and devices for drinking water treatment HY/T 213-2016 Testing method of breaking elongation strength for hollow fiber UF/MF membranes HY/T 233-2018 Test methods of ultrafiltration membrane performance—Part 1:General GB/T 1227-2002 Accurate pressure gauge GB/T 1227-2010 Accurate pressure gauge GB/T 1227-2017 Accurate pressure gauge GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods