Qhov sib txawv ntawm DRE thiab DRA series tub yees roj
Tus txheej txheem tshiab hauv teb chaws GB / T 16630-2012 rau cov tshuab cua txias roj yog siv rau Lub Ib Hlis 1, 2013, hloov qhov qub GB / T 16630-1996.
Qhov txawv nruab nrab ntawm cov ntxhuav roj DRA thiab DRE raws li txoj cai tshiab hauv teb chaws:
| DRA | DRE | |
| Refrigerant Gas | NH3 (ammonia) | HCFC (hydrochlorofluorocarbons) |
| Lubricant grouping | Incompatible | Tau tshaj |
| Ua kom zoo dua ntxhia roj | Ua kom zoo dua ntxhia roj | |
| Lubricant yam | Khoom siv roj carbon monoxide | Alkylbenzene, polyester roj, polyvinyl ether |
| daim ntawv thov raug | Industrial thiab lag luam tub yees | Automotive cua txias, domestic tub yees, cua kub twj, lag luam tub yees xws li thauj tub yees |
Ua kom pom tseeb:
u Cov tub yees yog ib feem sib txuam nrog cov roj khov, kom ob leeg sib xyaw thiab muaj cov kua fluid zoo ntawm qhov kub thiab txias.
u DRE yog sib zog nqus hydrotreated thiab muaj tsawg tshaj li ntawm DRA
