KTW (Kuyedza uye Kuyedzwa Kubvumidzwa kweZvisina Simbi Zvikamu muGerman Kunwa Mvura Indasitiri) inomiririra dhipatimendi rine chiremera cheGerman Federal Health department yekunwa mvura yekunwa system yekusarudza zvinhu uye kuongororwa kwehutano. Ndiyo rabhoritari yeGerman DVGW. KTW isimba rinosungirwa rekutonga rakavambwa muna 2003.
Vatengesi vanofanirwa kutevedzera DVGW (German Gas and Water Association) Regulation W 270 "Kuparidzirwa kwema microorganisms pane zvisiri zvesimbi". Chiyero ichi chinonyanya kuchengetedza mvura yekunwa kubva kutsvina yebiological. W 270 ndiyowo muitiro wekuita wezviga zvemutemo. Iyo KTW test standard ndeye EN681-1, uye W270 chiyero cheW270. Ese masisitimu emvura yekunwa uye zvinhu zvekubatsira zvinotumirwa kuEurope zvinofanirwa kupihwa KTW certification.
Nguva yekutumira: Sep-19-2022