KTW (Kuedza neKuyedza Kubvumidzwa kweZvikamu Zvisiri zvesimbi muGerman Drinking Water Industry) inomiririra dhipatimendi rine simba reGerman Federal Health Department rekusarudza zvinhu zvemvura yekunwa uye kuongorora hutano. Ndiyo rabhoritari yeGerman DVGW. KTW ihurumende inosungirwa kutonga yakavambwa muna 2003.
Vatengesi vanofanirwa kutevedzera DVGW (German Gas and Water Association) Regulation W 270 “Kupararira kwetupukanana pazvinhu zvisiri zvesimbi”. Mutemo uyu unonyanya kudzivirira mvura yekunwa kubva kutsvina yemuviri. W 270 ndiyo zvakare tsika yekushandisa mitemo yepamutemo. Muyero wekuyedza weKTW iEN681-1, uye mwero wekuyedza weW270 iW270. Masisitimu ese emvura yekunwa nezvinhu zvinobatsira zvinotumirwa kuEurope zvinofanirwa kupihwa neKTW certification.
Nguva yekutumira: Gunyana-19-2022