Chitoliro chaching'ono cha API5L chimagwiritsidwa ntchito popezeka mwachidule, amagwiritsidwa ntchito kwambiri mu mafuta, amagwiritsidwa ntchito kwambiri mu mafuta, mafuta ndi mafakitale ena. "Api5l" yake ndi muyeso wopangidwa ndi American petroleum Institute, ndi "GRB" ikuwonetsa kalasi ndi mtundu wa zomwe zili, zomwe nthawi zambiri zimagwiritsidwa ntchito pokakamira. Ubwino wa mapaipi achitsulo opanda chitsulo amagona m'njira zawo zabwino kwambiri komanso kukana kuwonongeka, ndipo amatha kugwira ntchito m'malo mwa madera ovuta komanso opanikizika kwambiri.

Zida zazikulu zamankhwala za api5l grb zosasangalatsa zimaphatikizapo kaboni, manganese, sulufule, phosphorous, ndi zina zambiri. Chitoliro chamtunduwu nthawi zambiri chimagwiritsidwa ntchito poyendetsa zakumwa ndi mpweya, makamaka pakugwiritsa ntchito mankhwalawa ndi kuyendetsa masitepe mafuta ndi masitolo, kuti atsimikizire kuti mwachita bwino.

ASMM A53, ASMM A106ndiAPI 5lali ndi miyezo itatu yopanda chitsulo, iliyonse yoyenera kugwiritsa ntchito malo osiyanasiyana.

Muyezo wa Astm A53 amagwiritsidwa ntchito makamaka m'minda monga mphamvu, zomangamanga ndi ma perrochemicals. Chitoliro chachitsulo cha muyezo uwu ndioyenera kukakamizidwa ndi kutentha pang'ono, ndipo nthawi zambiri kumagwiritsidwa ntchito kunyamula madzi, mpweya ndi madzi ena. Ili ndi mphamvu yabwino komanso yowoneka bwino, ndipo ndiyoyenera kupanga mapaipi ndi zigawo zosiyanasiyana.

The Astm A106 Muyezo umayang'ana kwambiri kutentha kwambiri komanso kugwiritsa ntchito bwino kwambiri ndipo ndi koyenera pakupanga mafuta ndi mafuta. Mapaipi achitsulo osawoneka a muyezo uno amagwiritsidwa ntchito makamaka poyendetsa nthunzi, madzi otentha ndi mafuta. Amatha kukhala ndi zida zabwino pamakina otentha kwambiri kuti zitsimikizire chitetezo komanso kukhazikika kwa mapaipi.

Muyezo wa API 5l umapangidwa kuti azipanga mafakitale a mafuta ndi gasi ndipo ndi yoyenera kufalitsa ma pipi. Mapaipi achitsulo osawoneka omwe amakwaniritsa miyezo iyi amakhala ndi mwayi wotsutsa komanso kukana, ndikuwonetsetsa kuti agwiritse ntchito mosatetezeka. API 5l mapaipi amagwiritsidwa ntchito pogwiritsa ntchito mankhwalawa ndikuyendetsa masitepe a mafuta ndi gasi kuti zitsimikizire mayendedwe abwino kwambiri.

Miyezo itatu iyi ya ziphuphu zosawoneka zachitsulo zili ndi mawonekedwe awo, kuphimba mawonekedwe osiyanasiyana pakukakamizidwa kuzovuta kwambiri, kuchokera kutentha pang'ono mpaka pamafuta, ndikupereka zitsimikiziro zotetezeka kuti ziziteteza komanso kuchita bwino.