BS1139 muyezo wazitsulo zachitsulo, ndizomwe zimagwiritsidwa ntchito nthawi yayitali, zimagwiritsidwa ntchito kwambiri komanso zimagwiritsidwa ntchito padziko lonse lapansi.Zofunika kalasi S235GT kotalika welded zitsulo chitoliro ndi awiri akunja 48.3mm, ndipo ndi otentha choviikidwa kanasonkhezereka mkati ndi kunja pamwamba.Malingana ndi njira yoyesera ya BS EN ISO, mankhwala a carbon (C), silicon (Si), phosphorous (P), sulfure (S), nitrogen (N) ndi zina amawunikidwa.The thupi ndi makina katundu wa mipope zitsulo amayesedwa monga: kumakanika mphamvu, zokolola ndi elongation.Kugwiritsa ntchito mipope zitsulo scaffold zomwe zimakwaniritsa muyezo wa BS1139 ndi chisankho chabwino chomwe chingachepetse mwayi wa ngozi zobwera chifukwa cha zovuta zakuthupi.