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Isitifiketi se-UL siyisitifiketi esingaphoqelekile e-United States, ikakhulukazi ukuhlola nokuqinisekisa ukusebenza kokuphepha komkhiqizo, futhi ububanzi baso bokuqinisekisa abufaki izici ze-EMC (ukuhambisana kwe-electromagnetic) zemikhiqizo. I-UL yinhlangano yobuchwepheshe ezimele, engenzi nzuzo, ehlola ukuphepha komphakathi. I-UL yasungulwa ngo-1894. Esigabeni sokuqala, i-UL yayithembele kakhulu ezimalini ezinikezwa umnyango womshuwalense womlilo ukuze iqhubeke nokusebenza kwayo. Kwaze kwaba ngo-1916 lapho i-UL yazimela ngokuphelele. Ngemva kweminyaka ecishe ibe yikhulu yentuthuko, i-UL isibe yinhlangano yokuqinisekisa edumile emhlabeni wonke enesethi yezinhlelo zokuphatha eziqinile zenhlangano, izinqubo zokuthuthukisa ezijwayelekile kanye nezinqubo zokuqinisekisa umkhiqizo.
Isitifiketi se-UL sasungulwa yi-certification, i-standard development agency, i-ejensi ye-ejensi, i-ejensi ye-ejensi. 1894, kanti i-UL nayo ingunjiniyela wezindinganiso zikazwelonke zaseCanada.
Ukuthola isitifiketi se-UL kubalulekile ngoba kukhombisa ikhono lomkhiqizi kanye nabahlinzeki bezinsizakalo. Abathengi bafuna ukwazi ukuthi inkampani abayiqashayo ukufaka imishini yabo iyafaneleka ukwenza umsebenzi kahle, nokuthi bazinike isikhathi sokuqinisekisa ukuthi yonke imikhiqizo abayifakayo iyahlolwa futhi ihlangabezana nezindinganiso zokuphepha. Isitifiketi se-UL sibonisa nokuthi inkampani ihlangabezana nayo yonke imithethonqubo yokuphepha kanye nemvelo yendawo kanye neyesifundazwe. Ungaqiniseka ngokwazi ukuthi abasebenzi bakho namakhasimende baphephile.
I-UL Verification Mark inikeza ukuhlolwa okusekelwe kwisayensi kanye nokuqinisekiswa kwezimangalo zokumaketha zabakhiqizi zemikhiqizo yabo, njengokusebenza komkhiqizo, ikhwalithi, kanye nezimangalo zomsebenzi.
1. Umkhiqizo usebenzisa ukuphepha komkhiqizo okuhlukahlukene; lapho abathengi namayunithi bekhetha isitifiketi somkhiqizo wase-US, kulula ukukhetha izimpawu zomkhiqizo nemakethe yonke.
2. Umlando we-UL unomlando weminyaka engaphezu kweyi-100. Isithombe sakho sigxile kakhulu kubathengi nakuhulumeni. Uma ungathengisi imikhiqizo kubathengi, uzodinga ukuthi imikhiqizo ibe nesitifiketi se-UL, ukuze imikhiqizo iphindwe.
3. Abathengi baseMelika kanye namayunithi okuthenga banokuzethemba okukhulu ngemikhiqizo yenkampani.
4. Kunezifunda zokuphatha ezingaphezu kuka-40,000 kuhulumeni wobumbano, wesifundazwe, wesifunda, kanye nowomasipala wase-United States, zonke eziqaphela uphawu lwesitifiketi se-UL.
Isitifiketi se-UL esitholwe yimikhiqizo ye-Soloon sibaluleke kakhulu ekuthengisweni kwemikhiqizo yethu e-United States, eCanada nakwamanye amazwe.
