Ukwahlulwa kwamanqanaba okuchaneka kwezikali zokulinganisa
Ukuhlelwa kwamanqanaba okuchaneka kwezikali zokulinganisa kugqitywa ngokusekwe kwinqanaba lazo lokuchaneka. ETshayina, inqanaba lokuchaneka kwezikali zokulinganisa lidla ngokwahlulwahlulwa libe ngamanqanaba amabini: inqanaba lokuchaneka eliphakathi (inqanaba le-III) kunye nenqanaba lokuchaneka eliqhelekileyo (inqanaba le-IV). Olu lulandelayo lulwazi oluneenkcukacha malunga nokuhlelwa kwamanqanaba okuchaneka kwezikali zokulinganisa:
1. Inqanaba lokuchaneka eliPhakathi (Inqanaba lesi-3): Eli lelona nqanaba lokuchaneka lixhaphakileyo kwizikali zokulinganisa. Kweli nqanaba, inani lokwahlula-hlula u-n wesikali sokulinganisa lidla ngokuba phakathi kwama-2000 kunye nama-10000. Oku kuthetha ukuba ubunzima obuncinci obunokuhlulwa sisikali sokulinganisa yi-1/2000 ukuya kwi-1/10000 yobukhulu bayo obukhulu. Umzekelo, isikali sokulinganisa esinobunzima obukhulu obuziitoni ezili-100 sinokuba nobunzima obuncinci obuziikhilogram ezingama-50 ukuya kwi-100.
2. Inqanaba lokuchaneka okuqhelekileyo (inqanaba le-IV): Eli nqanaba lesikali sokulinganisa lidla ngokusetyenziselwa iinjongo zorhwebo kwaye alifuni ukuchaneka okuphezulu njengenqanaba lokuchaneka okuphakathi. Kweli nqanaba, inani lokwahlula u-n wesikali sokulinganisa lidla ngokuba phakathi kwe-1000 kunye ne-2000. Oku kuthetha ukuba ubunzima obuncinci obunokwahlulwa sisikali sokulinganisa yi-1/1000 ukuya kwi-1/2000 yobukhulu bayo bokulinganisa.
Ukuhlelwa kwamanqanaba okuchaneka kwezikali zokulinganisa kubalulekile ukuqinisekisa ukuchaneka kwazo kwiimeko ezahlukeneyo zokusetyenziswa. Xa ukhetha isikali sokulinganisa, abasebenzisi kufuneka bakhethe inqanaba lokuchaneka elifanelekileyo ngokusekelwe kwiimfuno zabo zokwenyani.
Uluhlu lwesizwe oluvumelekileyo lweempazamo zezikali zokulinganisa
Njengesixhobo esibalulekileyo sokulinganisa, ibhulorho yokulinganisa idlala indima ebalulekileyo kwimveliso yemizi-mveliso kunye norhwebo. Ukuze kuqinisekiswe ukuchaneka kweziphumo zokulinganisa, ilizwe limisele imigaqo ecacileyo kuluhlu lweempazamo ezivumelekileyo zezikali zokulinganisa. Olu lulandelayo lulwazi olufanelekileyo malunga nempazamo evumelekileyo yezikali zokulinganisa ngokusekelwe kwiziphumo zophendlo zamva nje.
Iimpazamo ezivumelekileyo ngokwemigaqo yesizwe yemetrological
Ngokwemigaqo yesizwe yemetrological, inqanaba lokuchaneka kwezikali zokulinganisa linqanaba lesithathu, kwaye impazamo eqhelekileyo kufuneka ibe ngaphakathi kwe-± 3 ‰, nto leyo ethathwa njengeqhelekileyo. Oku kuthetha ukuba ukuba amandla aphezulu okulinganisa esikali sokulinganisa ziitoni ezili-100, impazamo ephezulu evumelekileyo ekusetyenzisweni okuqhelekileyo yi-± 300 kilograms (oko kukuthi ± 0.3%).
Iindlela zokusingatha iimpazamo zesikali sokulinganisa
Xa kusetyenziswa isikali sokulinganisa, kunokubakho iimpazamo ezicwangcisiweyo, iimpazamo ezingacwangciswanga, kunye neempazamo ezinkulu. Impazamo ecwangcisiweyo ikakhulu ivela kwimpazamo yobunzima equlethwe kwisikali sokulinganisa ngokwaso, kwaye impazamo engacwangciswanga isenokuba ngenxa yokwanda kwempazamo ebangelwa kukusebenza kwexesha elide. Iindlela zokusingatha ezi mpazamo ziquka ukususa okanye ukubuyisela iimpazamo ezicwangcisiweyo, kunye nokunciphisa okanye ukususa iimpazamo ezingacwangciswanga ngokusebenzisa imilinganiselo emininzi kunye nokucubungula izibalo.
Amanqaku kwi
Xa usebenzisa isikali sokulinganisa, kubalulekile ukuphepha ukugqithisa ukuze kuthintelwe umonakalo kwisenzi kwaye kuchaphazele ukuchaneka kokulinganisa. Kwangaxeshanye, izinto akufuneki ziphoswe ngqo emhlabeni okanye ziwiswe kwindawo ephakamileyo, njengoko oku kungonakalisa izisenzi zezikali. Ukongeza, isikali sokulinganisa akufuneki sishukunyiswe kakhulu ngexesha lokusetyenziswa, kungenjalo kuya kuchaphazela ukuchaneka kwedatha yokulinganisa kwaye kunokuchaphazela ubomi bayo benkonzo.
Ngamafutshane, uluhlu lweempazamo ezivumelekileyo zesikali sokulinganisa lumiselwa ngokusekelwe kwimigaqo yesizwe yemetrological kunye neenkcukacha zesikali sokulinganisa. Xa bekhetha kwaye besebenzisa isikali sokulinganisa, abasebenzisi kufuneka basivavanye ngokusekelwe kwiimfuno zabo kunye neemfuno zokuchaneka, kwaye banikele ingqalelo ekusebenzeni ngokuchanekileyo ukunciphisa iimpazamo.
Ixesha leposi: Disemba-02-2024