KTW (Gwaji da Gwaji na Gwaji na Ƙarfa na Ƙarfa a Masana'antar Ruwa ta Jamus) tana wakiltar sashin iko na Sashen Lafiya na Tarayyar Jamus don zaɓin tsarin ruwan sha da kimanta lafiyar lafiya.Ita ce dakin gwaje-gwaje na Jamusanci DVGW.KTW hukuma ce ta tilas da aka kafa a cikin 2003.
Ana buƙatar masu ba da kaya su bi DVGW (Ƙungiyar Gas da Ruwa na Jamus) Dokokin W 270 "Yaduwan ƙwayoyin cuta akan kayan da ba na ƙarfe ba".Wannan ma'auni yafi kare ruwan sha daga ƙazantattun halittu.W 270 kuma shine tsarin aiwatar da tanadin doka.Ma'aunin gwajin KTW shine EN681-1, kuma ma'aunin gwajin W270 shine W270.Duk tsarin ruwan sha da kayan taimako da ake fitarwa zuwa Turai dole ne a ba su takaddun shaida na KTW.
Lokacin aikawa: Satumba-19-2022