Isihluzi saManzi esiQinisekisiweyo se-NSF: Indlela ekhuselekileyo nethembekileyo yokuHlunga amanzi empompi
Kuluntu lwanamhlanje, ukuqinisekisa ukuba amakhaya namashishini anokufumana amanzi acocekileyo nacocekileyo okusela kubaluleke kakhulu. Kukho iintlobo ezininzi ezahlukeneyo zokucoca kangangokuba kunokuba nzima ukuxela ukuba yeyiphi esebenza ngokwenene. Kulapho ukuqinisekiswa kwe-NSF kuba ngumgangatho obalulekileyo wokhuseleko, ukuthembeka, kunye nokusebenza. I-NSF-izihluzi zamanzi eziqinisekisiweyo zezona zilungileyo kwimarike kuba zikhusela abantu kuluhlu olubanzi lweetyhefu ezihlala zifumaneka kumanzi ompompo.
Sithetha ntoni iSiqinisekiso se-NSF: UPhawu lokuThemba
I-NSF International, eyayikade ibizwa ngokuba yiNational Sanitation Foundation, liqela labucala,-elingelilo likarhulumente elisebenza ukukhusela impilo yoluntu kunye nokhuseleko. Yasekwa ngo-1944 kwaye ibeka imigaqo engqongqo, ivavanya izinto ngokucokisekileyo, kwaye ibanika isiqinisekiso ukuba ichaphazela impilo yoluntu, njengeenkqubo zokucocwa kwamanzi. Iye yamkelwa ngamaqela ahlonitshwayo kwihlabathi jikelele, kubandakanywa noMbutho wezeMpilo weHlabathi (i-WHO), ngokungakhethi cala nangokwenzululwazi.
Ileyibhile yeNSF kwisihluzo samanzi ingaphezulu nje kwelogo; luphawu lokuthembela. Kuthetha ukuba imveliso iye yavavanywa ngokucokisekileyo ukuqinisekisa ukuba iyahlangabezana neemfuno ezithile zempilo yoluntu. Olu vavanyo lujonga ukhuseleko lwempahla ukuqinisekisa ukuba akukho khompawundi eziyityhefu ezivuza emanzini, imfezeko yesakhiwo ukuqinisekisa ukuba inkqubo ayiqhekeki phantsi koxinzelelo, kwaye okona kubaluleke kakhulu, amabango okunciphisa ungcoliseko ukuqinisekisa ukuba isihluzi sisebenza njengoko sisitsho.
Ubuchwephesha boHlulo olungundoqo kwiiNkqubo eziQinisekiswe yi-NSF
NSF-izihluzi eziqinisekisiweyo zisebenzisa ukusika-ubuchwephesha obuyilelwe ukukhupha izinto ezingcolisayo. Isatifikethi sibandakanya inani lemigangatho, nganye esebenza kuhlobo oluthile lokuhluza kunye nobuchule bayo:
- I-activated Carbon Filtration (NSF/ANSI 42 & 53): Le yenye yezona ntlobo zixhaphakileyo zobuchwepheshe. Ngokunciphisa ubungakanani beklorine emanzini, izihluzi zekhabhoni eziqinisekisiweyo zenza incasa kunye nevumba elingcono. Okubaluleke ngakumbi, uMgangatho wama-53 ubonisa ukuba ngokwenene bayayisusa impilo -izingcolisi ezinxulumene nelothe, iikhompawundi eziguquguqukayo ze-organic (VOCs), izibulali-zinambuzane, kunye nezinye iikhemikhali.
- Reverse Osmosis (RO) Systems (NSF/ANSI 58): RO iinkqubo zihluza yonke into. Esi siqinisekiso somgangatho sibonisa ukuba inkqubo inokususa uluhlu olubanzi lwezinto eziqinileyo ezinyityilisiweyo, ezifana ne-fluoride, i-nitrate, i-arsenic, kunye ne-hexavalent chromium. Ukucocwa okupheleleyo, ezi zixokelelwano zikholisa ukuba nenqanaba elingaphezulu kwesinye, njengangaphambili{4}}izihluzi, inwebu ye-RO, kunye nezihluzo zeposi{5}.
- Eminye iMigangatho: Eminye imigangatho ijongene neemfuno ezikhethekileyo, ezifana noMgangatho we-55, ojongene nonyango lwe-ultraviolet (UV) lwe-microbiological contamination, kunye ne-Standard 44, ejongene notshintshiselwano lwe-cation ukunciphisa isikali.
Kubaluleke kakhulu ukufumana isihluzo esinesiqinisekiso esiyimfuneko se-NSF. Ukuba ufumana amanzi akho esixekweni, kufuneka ufumane inkqubo evavanyiweyo kwaye yamkelwe ukuthoba iklorine, ilothe, kunye neeVOCs (ezinjalo ziphantsi kweMigangatho 42/53). Ukuba amanzi anezingqimba ezininzi ezinyibilikisiweyo okanye iikhemikhali ezithile eziyingxaki, inkqubo ye-RO eqinisekisiweyo ingaba yeyona ndlela ilungileyo.
Kutheni iSiqinisekiso se-NSF sibalulekile: Ngakumbi kunentengiso nje
Zininzi izihluzi zamanzi kwiimarike ezenza izithembiso ezinkulu. Isiqinisekiso se-NSF sinqumla ingxolo ngokukunika ubungqina obuvela kumntu wesithathu. Kwenza umahluko phakathi kweemveliso ezivavanyelwe kuphela imigangatho ye-NSF kunye nezo ziqinisekisiweyo ngokusemthethweni yi-NSF. Lo mahluko ubaluleke kakhulu ekugcineni abathengi bekhuselekile.
Kwakhona, isatifikethi seNSF siyahlangabezana nemigaqo kwiindawo ezininzi. Umzekelo, i-NSF/ANSI Standard 61 ithi iinxalenye kunye nemathiriyeli zamkelekile ukusetyenziswa kwiinkqubo zamanzi okusela zikawonke-wonke. Oku kunceda abavelisi ukuba bafezekise iimfuno zabo zokuthobela. Kubathengi, oku kuthetha uxolo lwengqondo kuba besazi ukuba isihluzo abasikhethayo sixhaswa yisayensi kwaye samkelwa ngabasemagunyeni bezempilo kwihlabathi liphela.
Ujongwa njani kwaye ukhethe i-NSF ekunene-icebo lokucoca ulwelo
Ukukhetha isihluzo esichanekileyo, kufuneka uqale wazi ukuba uluphi uhlobo lwamanzi onalo. Uvavanyo lwamanzi linyathelo lokuqala elilungileyo lokufumanisa ukuba zeziphi iintlobo zongcoliseko ezisemanzini. Emva kokuba uyazi into oyifunayo, khangela izihluzi eziqinisekisiweyo ukulungisa ezo ngxaki.
Ngalo lonke ixesha jonga amabango esiqinisekiso. Eyona ndlela ilula kukungena kwi-intanethi kwiziko ledatha elisemthethweni lezatifiketi ze-NSF. Ungajonga imigangatho ethile (enje ngama-42, 53, kunye nama-58) ukuba imodeli yemveliso iqinisekiswe ngokuchaseneyo ngokujonga igama lomenzi. Oku kuqinisekisa ukuba ulwazi lucacile kwaye luyinyani.
Iinkqubo ezininzi -zeteknoloji lukhetho olulungileyo lokhuseleko olupheleleyo. Iingcali ezininzi zithi ukusebenzisa ubuchwephesha bokuhluza obungaphezulu kwesinye, njenge-carbon pre{2}}isihluzo esinenkqubo ye-RO, yeyona ndlela yokujongana neengozi ze-microbiological kunye nokungcola kweekhemikhali.
Ukuququmbela
Izatifikethi ze-NSF sisixhobo esibalulekileyo ekukhangeleni amanzi asempompo akhuselekileyo. Yenza ukhetho olunzima lwesihluzi samanzi lula ngokukunika ukusebenza okuthembekileyo kunye nolwazi olukhuselekileyo. Xa abantu kunye neenkampani zikhetha iNSF-isihluzo samanzi esiqinisekisiweyo, azithengi kuphela imveliso, kodwa zikwangumqobo ongqiniweyo ngokwesayensi{3}ochasene nokosuleleka. Oku kuqinisekisa ukuba baya kuba nofikelelo kumanzi acocekileyo,{5}amnandi anencasa kwiminyaka ezayo.
