Inguqu Engenalo Ilothe: IiTee zeBrass eziQinisekisiweyo yi-UKCA zoKhuseleko lwaManzi okuSela

Ukuvezwa kwelothe emanzini okusela ase-UK kusaqhubeka kuyingxaki, njengoko uvavanyo lwakutshanje lufumanise ukuba izikolo ezili-14 kwezingama-81 ezinamazinga elothe angaphezu kwama-50 µg/L—okuphindwe kahlanu kunomlinganiselo ocetyiswayo.izixhobo ze-tee zobhedukunceda ukuthintela ezo ngozi, ukuxhasa impilo yoluntu kunye nemigangatho engqongqo yokulawula ukhuseleko lweenkqubo zamanzi.

Izinto ezibalulekileyo ekufuneka ziqwalaselwe

• Izixhobo zebrass ezingenalo ilothe eziqinisekiswe yi-UKCA zithintela ungcoliseko oluyingozi lwelothe emanzini okusela, zikhusela impilo ingakumbi kubantwana nakubasetyhini abakhulelweyo.
• Izixhobo zebrass tee ziqinisekisa uqhagamshelo oluqinileyo nolungavuziyo kwiinkqubo zemibhobho, kwaye iinguqulelo ezingenalo ilothe zibonelela ngokuqina, ukhuseleko, kunye neenzuzo zokusingqongileyo.
• Isiqinisekiso se-UKCA siqinisekisa ukuba izixhobo zihlangabezana nemigangatho engqongqo yokhuseleko kunye nomgangatho e-UK, nto leyo enceda abavelisi kunye nabaphangi ukuba bathobele imigaqo kwaye baxhase ukunikezelwa kwamanzi akhuselekileyo.

Kutheni i-UKCA-Certified Brass Tee Fittings ibalulekile, kwaye ayinalo i-Lead?

Iingozi zeMpilo zeLead emanzini okusela

Ungcoliseko lwelothe emanzini okusela lubeka impilo emngciphekweni omkhulu, ingakumbi kumaqela asengozini njengabantwana kunye nabasetyhini abakhulelweyo. Izifundo zesayensi zibonise ukuba nokuba amazinga aphantsi okuvezwa yilothe anokubangela ingozi enkulu.

• Abantwana abachaphazeleka yilothe banokufumana iingxaki zemithambo-luvo kunye nezokuqonda, kuquka ukwehla kwe-IQ, ukungakwazi ukunikela ingqalelo, ukukhubazeka kokufunda, kunye neengxaki zokuziphatha.
• Abantu abadala bajongene nemingcipheko engakumbi yoxinzelelo lwegazi, ukonakala kwezintso, izifo zentliziyo, kunye nemiba yokuzala.
• Abafazi abakhulelweyo abachatshazelwa ngamanzi angcoliswe yilothe banamathuba aphezulu okukhulelwa, ukuzalwa ngaphambi kwexesha, kunye nokuphazamiseka kokukhula kwabantwana babo.
• Ukuchatshazelwa rhoqo, nokuba kuncinci kangakanani, kunokubangela iziphumo zempilo ezihlala ixesha elide kuwo onke amaqela eminyaka.

I-World Health Organization kunye ne-US Environmental Protection Agency zibeke amanqanaba aphezulu avumelekileyo e-lead emanzini okusela (0.01 mg/L kunye ne-0.015 mg/L, ngokulandelelana) ngenxa yezi ngozi. Izifundo, ezifana nezo zenziwe eHamburg, eJamani, zifumene unxibelelwano oluthe ngqo phakathi kwe-lead emanzini empompini kunye namanqanaba aphezulu e-lead egazini. Ungenelelo olufana nokuhlanjwa kwamanzi okanye ukutshintshela emanzini asebhotileni lunciphise kakhulu uxinano lwe-lead egazini. Ezi ziphumo zibonisa ukubaluleka kokususa imithombo ye-lead kwiinkqubo zamanzi ukukhusela impilo yoluntu.

Ukubaluleka kwezixhobo zeBrass Tee kwiiNkqubo zamanzi

Izixhobo zeBrass Tee zidlala indima ebalulekileyo kwiinkqubo zokusasaza amanzi kwiindawo zokuhlala nakwiindawo zorhwebo.

• I-Brass, i-alloy yobhedu kunye ne-zinc, inika ukumelana nokugqwala okugqwesileyo kunye nokuguquguquka, okwenza ukuba ilungele ukusetyenziswa kwemibhobho.
• Ezi zinto zidibanisa imibhobho ngokukhuselekileyo, zivumela utshintsho olugudileyo phakathi kwezinto ezahlukeneyo zemibhobho kwaye zivumela uyilo oluntsonkothileyo lwemibhobho.
• Izixhobo zebrass tee zilawula ukuhamba kwamanzi, zigcina inkqubo isemgangathweni phantsi koxinzelelo oluphezulu kunye nobushushu, kwaye zibonelela ngezitywino eziqinileyo nezingenako ukuvuza.
• Ukuqina kwazo kunye nokumelana nokugqwala kwandisa ubomi beenkqubo zombhobho, kunciphisa iimfuno zokugcinwa nokutshintshwa.
• Uhlobo lwe-union tee luvumela ukuba kube lula ukuyiqhaqha nokudibanisa kwakhona, nto leyo eyenza kube lula ukugcinwa kwayo ngaphandle kokuphazamisa yonke inkqubo.
• Izixhobo zebrass tee nazo ziyaphinda zisetyenziswe, zixhasa uzinzo lokusingqongileyo.

Ngokuqinisekisa uqhagamshelo oluthembekileyo kunye nokusebenza kwenkqubo, ezi zifakelo zinceda ekuthinteleni ukuvuza kunye nongcoliseko, nto leyo ebalulekileyo ekugcineni umgangatho wamanzi kunye nokhuseleko.

Iingenelo zeZixhobo zeBrass Tee ezingenalo iLead

Izixhobo zokufaka i-tee zebrass ezingenalo i-lead zineengenelo ezininzi kunezixhobo zokufaka i-brass zemveli ezinokuba ne-lead.

• Ukhuseleko: Ezi zinto zifakela amanzi zisusa umngcipheko wetyhefu yelothe ngokuthintela ityhefu yelothe ekungcoliseni amanzi okusela, ngaloo ndlela zikhusela impilo yabantu.
• Ukuqina: Ithusi elingenalo ilothe ligcina ukumelana nokugqwala kunye nokukhukuliseka, liqinisekisa ukusebenza ixesha elide kwiindawo ezifuna amanzi amaninzi.
• Ubuhlobo Kwindalo Esingqongileyo: Ngokuphepha inkunkuma eyingozi enxulumene nelothe, ezi zinto zifakelwayo zinciphisa impembelelo kwindalo esingqongileyo kwaye zixhasa iinjongo zokuzinza.
• Ukuthotyelwa kweMithetho: Izixhobo zebrass ezingenalo ilothe ziyahlangabezana neemfuno zomthetho, ezifana noMthetho wokuNcitshiswa kweLothe emanzini okuSela, othintela umxholo welothe ukuba ungadluli kwi-0.25% ngobunzima kwiindawo ezimanzi. Oku kuthobela kubalulekile kwizakhiwo ezintsha kunye nokuhlaziywa.
• Iziphumo ezingcono zeMpilo: Ukunciphisa ukuvezwa kwelothe kwiinkqubo zamanzi kukhuthaza impilo nokhuseleko loluntu ngokubanzi.

Uphando lwakutshanje lubonisa ukuba nee-fittings ezithengiswa njengezingenalo i-lead ngamanye amaxesha zinokukhupha inani elincinci le-lead, ingakumbi emva kweenkqubo zokufakela ezifana nokusika okanye ukupolisha. Nangona kunjalo, ii-tee ze-brass tee eziqinisekisiweyo yi-UKCA, ezingenalo i-lead, zivavanywa ngokuqatha kunye nolawulo lomgangatho, zinciphisa lo mngcipheko kwaye ziqinisekisa imigangatho ephezulu yokhuseleko lwamanzi. Ezi mveliso ziqinisekisiweyo zikwabonelela ngokuqina okuphezulu kunye neziqinisekiso ezinde xa kuthelekiswa nezinye iindlela ezingaqinisekiswanga, zibonelela ngoxolo lwengqondo kubafaki kunye nabasebenzisi bokugqibela.

Ukuthobela, Isiqinisekiso, kunye noTshintsho lweZixhobo zeTie zeBrass

Ukuqonda isiqinisekiso se-UKCA kunye nokubaluleka kwaso

Isatifikethi se-UKCA sibe ngumgangatho omtsha weemveliso zombhobho eGreat Britain ukusukela ngoJanuwari 2021. Olu phawu luqinisekisa ukuba iimveliso ziyahlangabezana neemfuno zokhuseleko, impilo, kunye nokusingqongileyo e-UK. Isatifikethi se-UKCA ngoku siyimfuneko kwiimpahla ezininzi, kuquka neBrass Tee Fittings, ezibekwe kwimarike yase-UK. Ngexesha lotshintsho, zombini iimpawu ze-UKCA kunye ne-CE ziyamkelwa kude kube nguDisemba 31, 2024. Emva kwalo mhla, yi-UKCA kuphela eya kuqatshelwa eGreat Britain. Iimveliso zaseMantla Ireland zifuna zombini iimpawu. Olu tshintsho luqinisekisa ukuba iBrass Tee Fittings iyahambelana nemigaqo yasekuhlaleni kwaye igcina imigangatho yokhuseleko ephezulu.

Imimiselo neMigangatho ephambili (i-UKCA, i-NSF/ANSI/CAN 372, i-BSEN1254-1, iMiyalelo ye-EU/UK)

Imigaqo nemigangatho eliqela iqinisekisa ukhuseleko kunye nomgangatho wezixhobo zamanzi okusela. Umgaqo 4 weMigaqo yoNikezelo lwaManzi (iZixhobo zaManzi) ka-1999 ufuna izixhobo zokuthintela ungcoliseko kunye nokusetyenziswa gwenxa. Iimveliso akufuneki zikhuphe izinto eziyingozi kwaye kufuneka zihambelane neMigangatho yaseBritane okanye iinkcukacha ezivunyiweyo. Amaziko oqinisekiso afana neWRAS, KIWA, kunye neNSF avavanya kwaye aqinisekise iimveliso, enika isiqinisekiso sokuba izixhobo zeBrass Tee zigcina umgangatho wamanzi. Imigangatho efana neNSF/ANSI/CAN 372 kunye neBSEN1254-1 ibeka imida engqongqo kumxholo welothe kunye nokusebenza koomatshini.

Isatifikethi, Iindlela zoVavanyo, kunye noLawulo loMgangatho (Kubandakanya uHlalutyo lwe-XRF)

Abavelisi basebenzisa iindlela zovavanyo eziphambili ukuqinisekisa umxholo we-lead kwi-Brass Tee Fittings. Uhlalutyo lwe-X-ray fluorescence (XRF) yindlela ephambili engonakalisiyo. Ibonelela ngeziphumo ezikhawulezayo nezichanekileyo zokwakheka kwezinto ezisisiseko, kubandakanya amanqanaba e-lead. Abahlalutyi be-XRF abaphathwa ngesandla bavumela ukuqinisekiswa kwendawo ngexesha lokuveliswa, bexhasa ukuqinisekiswa komgangatho. Ezinye iindlela ziquka ukuhlolwa ngokubonakalayo kweziphene zomphezulu kunye novavanyo loomatshini lwamandla. Uhlalutyo lweekhemikhali, olufana ne-wet chemistry, lubonelela ngokuchithwa kwe-alloy eneenkcukacha. Ezi nkqubo ziqinisekisa ukuba izixhobo ziyahlangabezana nemigangatho yolawulo kwaye azibeki mngcipheko kwimpilo.

Imingeni yoTshintsho kunye neZisombululo zabavelisi kunye nabaPlumbi

Abavelisi bajongene nemingeni emininzi xa betshintshela kwi-Brass Tee Fittings engenalo ilothe, eqinisekiswe yi-UKCA:

• Kufuneka bathobele imithetho engqongqo ethintela umxholo welothe ukuya kwi-0.25% ngobunzima.
• Isiqinisekiso semigangatho efana ne-NSF/ANSI/CAN 372 siyimfuneko, sidla ngokufuna uhlolo lomntu wesithathu.
• Ulawulo lomgangatho lubaluleke kakhulu, ingakumbi xa kusetyenziswa izinyithi ezisetyenzisiweyo.
• Izinto ezintsha ze-alloy zithatha indawo ye-lead ngezinto ezifana ne-silicon okanye i-bismuth ukuze zigcine ukusebenza kakuhle.
• Abavelisi kufuneka baphawule kwaye bahlukanise ngokucacileyo phakathi kwezinto ezingenalo ilothe kunye nezinto ezingenalo ilothe.
• Uvavanyo oluphambili, olufana ne-XRF, lunceda ukuqinisekisa ukuthotyelwa kwemithetho.

Abalungisi beeplanga kufuneka baqonde umahluko phakathi kweentlobo zokufakela kwaye baqinisekise ukufakwa ngokuchanekileyo. Ukubhala iilebhile ezicacileyo kunye nemfundo eqhubekayo kunceda ekuphepheni imiba yokuthobela imithetho kunye nokukhusela impilo yoluntu.

Izixhobo ezingenalo ilothe eziqinisekisiweyo yi-UKCA zidlala indima ebalulekileyo ekukhuseleni impilo yoluntu nasekuqinisekiseni ukuthotyelwa kwemithetho. Ulawulo lomngcipheko olusebenzayo kunye nokunamathela kwimigangatho eguqukayo kunceda abachaphazelekayo ukuba baphephe izohlwayo zomthetho, banciphise ukusilela kokusebenza, kwaye bagcine ukuthembana. Ukukhetha iimveliso eziqinisekisiweyo kubonisa uxanduva kwaye kuxhasa unikezelo lwamanzi olukhuselekileyo noluzinzileyo.

FAQ

Kuthetha ukuthini ukuthi “akukho lead” kwizixhobo zebrass tee?

“Ayinalothi” ithetha ukuba ithusi ayinalothi engaphezulu kwe-0.25% ngobunzima kwiindawo ezimanzi. Oku kuhambelana nemigangatho engqongqo yempilo nokhuseleko kwiinkqubo zamanzi okusela.

Abalungisi bemibhobho bangazichonga njani ii-tee zebrass ezingenalo i-lead eziqinisekiswe yi-UKCA?

Abalungisi beeplamba banokujonga uphawu lwe-UKCA kwiphakheji yemveliso okanye kwisixhobo sokufaka izinto ngokwaso. Amaxwebhu esiqinisekiso avela kubaboneleli nawo aqinisekisa ukuthotyelwa kwemithetho yase-UK.

Ngaba izixhobo ze-tee zebrass ezingenalo ilothe ziyayichaphazela incasa okanye umgangatho wamanzi?

Izixhobo zebrass ezingenalo ilothe azitshintshi incasa okanye ivumba lamanzi. Zigcina umgangatho wamanzi kunye nokhuseleko lwawo, zixhasa ukuthotyelwa kwemithetho kunye nokuzithemba kwabathengi.