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Guidelines for Drinking-water Quality
www.who.intGUIDELINES FOR DRINKING-WATER QUALITY iv 2.2 Guidelines for verification 29 2.2.1 Microbial water quality 29 2.2.2 Chemical water quality 30 2.3 National drinking-water …
Guidelines for Drinking-water Quality - WHO
www.who.intGUIDELINES FOR DRINKING-WATER QUALITY iv 2.2 Guidelines for verification 29 2.2.1 Microbial water quality 29 2.2.2 Chemical water quality 30 2.3 National drinking-water …