Official Answer
Answer
Ibyuma bya karubone nyinshi nka SAE 1070 kugeza 1090 ($ HRC 45-52 $) birashobora kwanduzwa cyane na hydrogène mugihe cyo gufata aside cyangwa amashanyarazi (Zinc cyangwa Cadmium). Hydrogen hydrogène ikwirakwira muri kasitori ya kirisiti, ikusanyiriza ku mbibi z'ingano no gutandukana, ibyo bigabanya imbaraga zifatika z'icyuma. Ku masoko y'amazi, ibi mubisanzwe bivamo kuvunika gutinda kuvunika munsi yumutwaro uhagaze. Kugira ngo ibi bigabanuke, amasoko agomba guhita akora 'guteka' ako kanya nyuma yo gushira (mu masaha 1-4) ku $ 375 ^ {\ umuzenguruko} F \ pm 25 ^ {\ umuzenguruko} F $ ($ 190 ^ {\ umuzenguruko} C $) byibuze amasaha 8 kugeza 24, bitewe n'ubunini n'ubukomere. Ibi bituma hydrogène isohoka mu bikoresho.
