1. Izakhiwo ezijwayelekile ezibikwe lapha zijwayelekile kumkhiqizo, kodwa azibonisi ukuhlukahluka okuvamile kokuhlola ngakho-ke akufanele zisetshenziswe ngezinjongo zokucacisa. Amanani ahlanganisiwe.
2. Izakhiwo ezibonakalayo zanqunywa kumasampula abunjwe ngokucindezelwa alungiselelwe ngokuhambisana neNqubo C ye-ASTM D4703, i-Annex A1.
3. Ngokusekelwe kufilimu engu-0.025 mm ekhiqizwe ngesilinganiso sokuqhuma esingu-4:1.