Hunhu hwakaumbwa hwakayerwa pa 4 mm (157.5 mil) gobvu re sampuli yakaumbwa nejekiseni zvichibva pa ISO 294-1.
Kugadzirira sampuro yekupisa kwekupisa, jekiseni rakavakirwa paISO1872. Yakaedzwa nzvimbo yakatsetseka ine saizi yemuenzaniso ye80mm x 10mm x 4mm.
ESCR yakayerwa pa 2 mm (78.7 mil) plate yakaumbwa ine ukobvu hwekumanikidzwa (F50, 10% Igepal, 50℃, 122°F)