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Standard Insuued on: 2007-07 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | AQSIQ; SAC | Issued Date: | 2007-07-30 |
Implemented Date: | 2008-7-1 | Abolished Date: | 2016-06-01 |
Superseded Standard.: | GB 20840.4-2015 Instrument transformers―Part 4:Additional requirements for combined transformers GB/T 20840.4-2015 Instrument transformers -- Part 4: Additional requirements for combined transformers |
Superseded Date: | 2016-6-1 |
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