On April 1, 2022, the full text of the "Sanitary Standards for Drinking Water" has been officially released by the Standards Publishing House, and the new national standard will be officially implemented on April 1, 2023.
The "Sanitary Standards for Drinking Water" was first published in 1985 and underwent its first revision and release in 2006. This is the second revision and release, replacing the standard GB 5749-2006.
The drafting unit of the new national standard "Sanitary Standards for Drinking Water" GB 5749-2022 has not only added many authoritative institutions but also increased the number of relevant enterprises and units in prefecture level cities compared to the first revised and released standard. The number of main standard drafters has also increased by more than half, and the addition of relevant units and experts has made the new standard more comprehensive, applicable, and scientific.
The new national standard replaces the "Sanitary Standards for Drinking Water" GB5749-2006, which specifies the requirements for the quality of drinking water, the quality of drinking water sources, the hygiene requirements for centralized water supply units, the hygiene requirements for secondary water supply, the hygiene requirements for products related to drinking water hygiene and safety, and the methods for water quality inspection. The water quality indicators have been adjusted from 106 to 97, including 43 conventional indicators and 54 extended indicators. The water quality reference indicators have been adjusted from 28 to 55.
delete
(1) Thirteen indicators have been removed, including heat-resistant coliforms, trichloroacetaldehyde, sulfides, cyanide chloride, total hexachlorocyclohexane, parathion, methyl parathion, Lindane, DDT, formaldehyde, 1,1,1-trichloroethane, 1,2-dichlorobenzene, and ethylbenzene;
(2) The temporary regulations on water quality indicators and limits for small-scale centralized and decentralized water supply have been deleted (see Chapter 4 of GB 5749-2006).
modify
(1) Modified the names of three indicators, including changing the name of oxygen consumption to permanganate index (calculated as O ₂), changing the name of ammonia nitrogen (calculated as N) to ammonia (calculated as N), and changing the name of 1,2-dichloroethylene to 1,2-dichloroethylene (total amount);
(2) Adjusted the limit values of 8 indicators, including nitrate (calculated as N), turbidity, permanganate index (calculated as O ₂), free chlorine, boron, vinyl chloride, trichloroethylene, and dimethoate. See the table below:
increase
Four indicators have been added, including perchlorate, acetochlor, 2-methylisoborneol, and geosmin. See the table below:
Standard original text and related interpretation files download
《Sanitary Standards for Drinking Water》GB 5749-2022.pdf
Interpretation of the "Sanitary Standards for Drinking Water"GB5749-2022.pdf
