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| International Standard Category: Testing of metals in general |
GB/T 1550-1997 methods for measuring conductivity type of extrinsic semiconducting materials
非本征半导体材料导电类型测试方法;
| Category No.: | 77.040.01 | Valid Status: | superseded |
| Issued Organization: | AQSIQ | Issued Date: | 1997-6-3 |
| Implemented Date: | 1997-1-2 | Abolished Date: | |
| Superseded Standard.: | GB/T 1550-2018 Test methods for conductivity type of extrinsic semiconducting materials |
Superseded Date: | 2019-11-1 |
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