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Standard Insuued on: 2017-05 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | AQSIQ; SAC | Issued Date: | 2017-05-12 |
Implemented Date: | 2017-12-1 | Abolished Date: | |
Superseded Standard.: | GB/T 7778-2017/XG1-2019 Number designation and safety classification of refrigerants, includes Amendment 1 GB/T 7778-2017/XG2-2020 Number designation and safety classification of refrigerants,includes Amendment 1 |
Superseded Date: | 2019-3-29 |
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