Esikhathini eside esidlule, sicaphuna amathebula okuguqulwa kwamanye amazwe abe ngelaseShayina, kodwa ngesikhathi sokusetshenziswa, ngenxa yokwakheka kwamakhemikhali kwezinto, ubuchwepheshe bokucubungula, usayizi wejometri wesampula nezinye izici kanye nokunemba kwezinsimbi zokulinganisa emazweni ahlukahlukene, ubudlelwano bokuguqulwa kobulukhuni namandla ukuze kusungulwe isisekelo kanye nezindlela zokucubungula idatha zihlukile, sithole ukuthi kunomehluko omkhulu phakathi kwamanani ahlukahlukene okuguqulwa. Ngaphezu kwalokho, akukho standard ehlanganisiwe, amazwe ahlukene asebenzisa ithebula lokuguqulwa elihlukile, okuletha ukudideka kumanani okuguqulwa kobulukhuni namandla.
Kusukela ngo-1965, i-China Metrology Scientific Research kanye namanye amayunithi asungule izilinganiso zokuqina kwe-Brinell, Rockwell, Vickers kanye ne-Rockwell engaphandle kanye namanani amandla ngokusekelwe enanini elikhulu lokuhlolwa nocwaningo lokuhlaziya, ukuhlola ubudlelwano obuhambisanayo phakathi kokuqina okuhlukahlukene kanye namandla ezinsimbi zensimbi, ngokuqinisekiswa kokukhiqiza. Sakha "ithebula lethu lokuguqulwa kokuqina kwensimbi emnyama kanye namandla" elifanele uchungechunge lwensimbi oluyi-9 futhi kungakhathaliseki ukuthi lingakanani izinga lensimbi. Emsebenzini wokuqinisekisa, amayunithi angaphezu kwe-100 ahlanganyele, kwacutshungulwa amasampula angaphezu kuka-3,000, kwalinganiswa idatha engaphezu kuka-30,000.
Idatha yokuqinisekisa isatshalaliswa ngokulinganayo kuzo zombili izinhlangothi zejika lokuguqulwa, futhi imiphumela ihambisana ngokuyisisekelo nokusatshalaliswa okuvamile, okungukuthi, lawa mathebula okuguqulwa ahambisana ngokuyisisekelo neqiniso futhi atholakalayo.
Lawa mathebula okuguqulwa aqhathaniswe emhlabeni wonke namathebula okuguqulwa afanayo amazwe ayi-10, futhi amanani okuguqulwa ezweni lethu cishe ayisilinganiso samanani okuguqulwa emazweni ahlukahlukene.
Isikhathi sokuthunyelwe: Mashi-26-2024
