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| Standard Insuued on: 2008-12 |
GB 20936.4-2008 Electrical apparatus for the detection and measurement of flammable gases - Part 4: Performance requirements for group Ⅱ apparatus indicating a volume fraction up to 100% gas
可燃性气体探测用电气设备 第4部分：显示气体体积含量至100%的II类探测器的性能要求
| Category No.: | GB | Valid Status: | superseded |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2008-12-30 |
| Implemented Date: | 2010-1-1 | Abolished Date: | 2018-07-01 |
| Superseded Standard.: | GB/T 20936.1-2017 Gas detectors for explosive atmospheres—Part 1: Performance requirements of detectors for flammable gases |
Superseded Date: | 2018-7-1 |
DB21/T 1695-2008
DB21/T 1694-2008
DB21/T 1703-2008
DB21/T 1707-2008
GB/T 4543-2008
GB/T 15558.3-2008
DB21/T 1710-2008
GB/T 19214-2008
GB/T 23101.4-2008
GB/T 4541-2008
DB21/T 1701-2008
DB21/T 1709-2008
GB/T 3107-2008
DB21/T 1698-2008
DB31/T 95-2008
DB13/T 997-2008
DB21/T 1708-2008
DB35/T 562-2008
GB/T 13552-2008
GB/T 22736-2008/XG1-2018
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