Umuyoboro wo gusudira udafite ibyuma, byitwa umuyoboro usudira, urangwa nubusobanuro buhanitse, uburebure bwurukuta rumwe, umucyo mwinshi imbere no hanze yumuyoboro, kandi birashobora kugenwa uko bishakiye.Ikoranabuhanga ryo gusudira rishobora kugabanywa mu buryo bwikora bwo gusudira no gusudira intoki.GB / T12770-2002 ikoreshwa cyane cyane mumashini, imodoka, amagare, ibikoresho, gushushanya amahoteri na resitora nibindi bice byubukanishi.GB / T12771-2008, ikoreshwa cyane mugutanga umuvuduko muke wangiza.Mubice byinshi kandi byinshi, imiyoboro yicyuma idasimbuwe isimbuzwa imiyoboro, imiyoboro ishushanya, imiyoboro yo hagati n’umuvuduko ukabije, nibindi, cyane cyane kubikoresho byo guhana ubushyuhe.