Iyini i-NSF Certified for Water
Kwadalwa ngo 07.14
Iyini i-NSF Eqinisekisiwe Yamanzi?
Isitifiketi se-NSF samanzi sisho ukuqinisekiswa okuzimele kwesithathu ukuthi umkhiqizo, impahla, noma ingxenye esetshenziswa ohlelweni lwamanzi ihlangabezana nezindinganiso ezithile zempilo yomphakathi nokuphepha. Lapho umkhiqizo (njengethangi lokugcina amanzi, upende, noma ipayipi) umakwa ngokuthi "Iqinisekiswe yi-NSF" emanzini aphuzekayo, kusho ukuthi uhlolwe ngokuqinile ukuze kuqinisekiswe ukuthi awukhiphi izinto ezinobungozi—ezinjengezinsimbi ezinzima, amakhemikhali aphilayo aguquguqukayo (VOCs), noma obunye ubuthi—emanzini okuphuza.
Embonini yengqalasizinda yamanzi, "ukuqinisekiswa yi-NSF" kuyizinga eliphakeme lokuthobela imithetho, okufakazela ukuthi umkhiqizo uphephile ukuthintana namanzi ahloselwe ukusetshenziswa ngabantu.
Kungani "NSF/ANSI 61" Kuyizinga Lomkhakha
Nakuba kunezindinganiso eziningi ze-NSF, i-NSF/ANSI/CAN 61 iyizinga elibaluleke kakhulu kunoma ubani ohilelekile ekugcinweni kwamanzi, kuhlanganise nabakhiqizi bamathangi kanye nezifunda zikamasipala zamanzi.
Ukuthi I-NSF/ANSI 61 Ihlola Ini Ngokuqondile:
● Ukuchithwa Kwezinto Ezinobuthi: Ilebhu yokuhlola icwilisa umkhiqizo emanzini ahlukahlukene (emazingeni ahlukene e-pH kanye namazinga okushisa) ukuze ibone ukuthi kukhona yini amakhemikhali "achithwa" noma ancibilika esuka entweni engena emanzini.
● Ukuhlolwa Kwezinto Ezinobuthi: Ososayensi babuyekeza ukwakheka kwamakhemikhali omkhiqizo ukuze baqinisekise ukuthi azikho izinto ezingavunyelwe ezikhona.
● Ukuhlolwa Kwezikhathi Ezithile: Isitifiketi akuyona into "eyenzeka kanye kuphela". I-NSF yenza ukuhlolwa kwefekthri okungamenyezelwe ukuze iqinisekise ukuthi inqubo yokukhiqiza ayishintshile nokuthi izinto ezisetshenzisiwe ziyafana nalezo eziphumelele ukuhlolwa kokuqala.
NSF/ANSI 372: Izinga "Elingenalo Uthumbu"
Iphakanyiswa kaningi kanye ne-NSF 61, i-NSF/ANSI 372 iyindinganiso yokuqukethwe komthofu. Igunyaza ukuthi isilinganiso esisindayo sokuqukethwe komthofu "endawo emanzi" (izingxenye zethangi noma ipayipi ezithinta amanzi) ayingeqi ku-0.25%. Emaphrojekthini kamasipala, ukuhambisana nakho kokubili u-61 no-372 ngokuvamile kuyimfuneko yokuthenga ephoqelekile.
Kungani Ukuqinisekiswa Kubalulekile Ekugcinweni Kwezimboni
Uma uphatha indawo yezimboni noma iphrojekthi kamasipala, ukukhetha imikhiqizo eqinisekisiwe akuyona nje "ibhokisi lokuphepha okumele lihlolwe"—kodwa kuyisu lokulawula ubungozi:
1. Ukuthobela Umthetho: Ezindaweni eziningi, amasistimu amanzi okuphuza kumele asebenzise izingxenye eziqinisekisiwe ukuthi zihambisana nalezi zindinganiso. Ukusebenzisa amathangi angaqinisekisiwe kungaholela ekwenqatshweni kwephrojekthi, emlandweni wezomthetho, nasekulungiseni okubizayo.
2. Ukwethenjwa Komphakathi: Ezifundeni zamasipala zamanzi, ukuqinisekiswa kwe-NSF ubufakazi obuyinhloko obunikezwa umphakathi bokuthi ingqalasizinda iphephile.
3. Ukuphila Kwezinto: Nakuba i-NSF 61 iyindinganiso yezempilo, inqubo yokuyithola idinga ukuthi izinto zibe sezingeni eliphezulu futhi zihambisane. Imikhiqizo eqinisekisiwe ngokuvamile ikhiqizwa ngezilawuli eziqinile zekhwalithi, okuvame ukuhambisana nokusebenza kahle kwesikhathi eside.
Imibuzo Evame Ukubuzwa (FAQ)
Umbuzo: Ingabe isitifiketi se-NSF siyimpoqo ngokomthetho kuwo wonke amathangi amanzi?
Impendulo: Kuncike emithethweni yendawo, yesifundazwe, noma kazwelonke. Kodwa-ke, e-United States nakwamanye amazwe amaningi, amaphrojekthi amaningi kamasipala okuphuza amanzi acela ngokusobala isitifiketi se-NSF/ANSI 61 emibhalweni yabo yamabhidho. Noma ngabe akudingekile 'ngokomthetho' kukho konke ukufakwa kwangasese, kuthathwa njengendinganiso yemboni yokwenza ngokucophelela.
Umbuzo: Ingabe isitifiketi se-NSF siqinisekisa ukuthi ithangi ngeke livuze noma ligqwale?
A: Cha. Kubalulekile ukuqonda ukuthi ukufakazelwa kwe-NSF kuyisilinganiso sokuphepha nempilo, hhayi isilinganiso sokwakha. Kuqinisekisa ukuthi amanzi ahlanzekile, kodwa akuqinisekisi impilo yesakhiwo sethanki noma ukumelana kwaso nokusebenza kwe-seismic. Kufanele ubheke kokubili ukufakazelwa kwe-NSF (kokuphepha) kanye nokuhambisana kwesakhiwo (njengoba i-AWWA D103 ye-tanks zensimbi ezibotshwe) ukuze uqinisekise ukuthi ithanki liphephile futhi liqinile.
Q: Ingabe umkhiqizo ungaba "uhambisana ne-NSF" kodwa ungabi "ufakazelwe yi-NSF"?
A: Yebo, futhi lokhu kuyindida evamile. "Ukuthobela" ngokuvamile kusho ukuthi umkhiqizi uthi umkhiqizo uyahlangabezana nezindinganiso. "Ukuqinisekiswa" kusho ukuthi umkhiqizi ukhokhele umuntu wesithathu oqinisekisiwe (njenge-NSF International) ukuthi enze ukuhlola okuzimele kanye nokuhlolwa kwezimboni. Ezingqalasizinda ezinobungozi obukhulu, hlala ugcizelela isitifiketi esisemthethweni, hhayi nje isimemezelo somkhiqizi sokuthobela.
Q: Ngingaqinisekisa kanjani ukuthi ithangi noma umkhiqizo uqinisekisiwe ngempela?
A: Ungalokothi uthembele kuphela kulogo kuwebhusayithi. Ungaqinisekisa isimo sanoma yimuphi umkhiqizo ngokusesha i-NSF International Online Product Database esemthethweni. Uma umkhiqizi noma imodeli ethile ingekho lapho, abaqinisekisiwe okwamanje.
Ingabe ulungiselela ukucaciswa kwamabhidi ophrojekthi omusha wokugcina amanzi futhi udinga ukuqinisekisa izidingo zokuqinisekiswa kwezimo zakho ezithile zendawo?
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