2023DIN 19643-1:2023-06 Treatment of water of swimming pools and baths - Part 1: General requirements / Note: This standard is part of the DVGW body of rules.
1970DIN 19643-1:2023 Aufbereitung von Schwimm- und Badebeckenwasser - Teil 1: Allgemeine Anforderungen
1970DIN 19643-1 E:2022-06 Aufbereitung von Schwimm- und Badebeckenwasser - Teil 1: Allgemeine Anforderungen
2012DIN 19643-1:2012 Treatment of water of swimming pools and baths - Part 1: General requirements
1997DIN 19643-1:1997 Treatment of the water of swimming-pools and baths - Part 1: General requirements