ISO 6743-4 tus qauv yog Lub Lubricants, muaj roj thiab cov khoom muaj feem xyuam nrog (Class L) Kev Kawm Ntawv - Tshooj 4: Tsev Neeg H (Cov Hluav Taws Xob) (ISO 6743-4: 1 999).
ISO 6743 muaj cov nram qab no, raws li lub npe Lub npe, roj thiab lwm yam khoom siv (chav kawm L) - Kev Sau Npe:
Tshooj 0: General
Tshooj 1: Tsev Neeg A (Tag nrho cov kev poob haujlwm)
Ntu 2: Tsev Neeg F (Txawv cov kabmob, cov hlua khi thiab cov hlua khi)
Tshooj 3A: Tsev Neeg D (Compressors)
Tshooj 3B: Tsev Neeg D (Roj thiab tub yees compressors)
Tshooj 4: Tsev Neeg H (Cov Hluav Taws Xob)
Tshooj 5: Tsev Neeg T (Turbines)
Tshooj 6: Tsev Neeg C (Zog)
Tshooj 7: Tsev Neeg M (Hlau Ua)
Tshooj 8: Tsev Neeg R (Kev tiv thaiv mus ib ntus tiv thaiv kev txhuam tawm)
Tshooj 9: Tsev Neeg X (Greases)
Tshooj 1 0: Tsev Neeg Y (Lwm Yam)
Tshooj 1 1: Tsev Neeg P (Cov cuab yeej Pneumatic)
Tshooj 1 2: Tsev Neeg Q (Cov dej tshav kub kom sov)
Tshooj 1 3: Tsev Neeg G (Yav Dhau Los)
Tshooj 1 4: Tsev Neeg U (Kev Kho Mob Thaum Tshav Kub Kub)
Tshooj 1 5: Tsev Neeg E (Sab Nraud)
Qhov no ISO 6743-4 tsim kom muaj cov ncauj lus kom ntxaws ntawm cov dej haus ntawm tsev neeg H (Cov tshuab hluav taws xob) uas muaj rau chav kawm L (Lubricants, muaj cov roj thiab cov khoom muaj feem xyuam). Nws yuav tsum tau nyeem nrog ISO 6743-0. Qhov kev faib tawm no tsis suav, rau lub sijhawm, tsheb nres cov kua thiab cov dej tsis huv. Txawm li cas los xij, tsab ntawv no suav nrog cov dej hauv cheeb tsam xws li: HETG, HEPG, HEES thiab HEPR.
