I-KTW (Ukwamkelwa kovavanyo kunye nokulinga kwiindawo ezingezizo ezentsimbi kushishino lwamanzi okusela aseJamani)

I-KTW (uVavanyo kunye noVavanyo loQinisekiso lwezahlulo ezingezizo iintsimbi kwiShishini laManzi okuSela eJamani) limele isebe eligunyazisiweyo leSebe lezeMpilo laseJamani elijongene nokukhethwa kwezinto zenkqubo yamanzi okusela kunye novavanyo lwezempilo.Yilabhoratri yaseJamani iDVGW.I-KTW ligunya elinyanzelekileyo lokulawula elasekwa ngo-2003.

Ababoneleli kufuneka bathobele i-DVGW (i-German Gas and Water Association) Ummiselo W 270 "Ukusasazwa kwee-microorganisms kwizinto ezingezizo zetsimbi".Lo mgangatho ukhusela ikakhulu amanzi okusela kubumdaka bebhayoloji.I-W 270 ikwayindlela yokuphunyezwa kwemimiselo yomthetho.Umgangatho wovavanyo lwe-KTW yi-EN681-1, kunye nomgangatho wovavanyo we-W270 yi-W270.Zonke iinkqubo zamanzi okusela kunye nezinto ezincedisayo ezithunyelwa eYurophu kufuneka zikhutshwe ngesatifikethi se-KTW.