Iimaski zoBuso eziLahlwayo zoBuqu ezingalukwanga ezithengiswayo ngobuninzi, iiMaski zoBuso eziLahlwayo ezithengiswayo

1. Inkcazelo yeMveliso eneenkcukacha

① Ayilukwanga

② Ithambile kwaye ayicaphukisi

③ iipleyiti ezi-3

④ Ihluzwa kakhulu kwaye kulula ukuyiphefumla

2. Iimpawu

① Ukhuseleko olunezinti ezi-3, luphefumla lula kakhulu

② Impumlo elungisekayo, iindlebe

③ Umaleko ophezulu omelana nolwelo, uthambile kakhulu. Wenzelwe ngokukodwa abantu abanesikhumba esibuthathaka, kokukhona ukhuseleko olungcono ekuchatshazelweni ligazi kunye nokutshiza/ukutshiza/ukutshiza. (Umaleko omelana nolwelo udibana ne-ASTM F1862)