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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HG/T 6122-2022 |
Evaluation requirements for green factories in the Difluoromethane industry {译} 二氟甲烷行业绿色工厂评价要求 |
China Chemistry Industry
Standards Difluoro |
 English PDF |
| HG/T 4795-2014 |
1-Difluoro-l-chloroethane (HCFC-142b) for industrial use 工业用1,1-二氟-1-氯乙烷(HCFC-142b) |
China Chemical Industry
Standards Difluoro |
English PDF |
| HG/T 4634-2014 |
Difluoromethane (HFC-32) for industrial use 工业用二氟甲烷(HFC-32) |
China Chemical Industry
Standards Difluoro |
English PDF |
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