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| Chinese National Standard Category: Material and component for instrument and meter |
| English Title: | Test method for refractive index of infrared optical chalcogenide films |
| Chinese Title: | 红外硫系光学薄膜折射率测试方法 |
| Standard No.: | GB/T 40293-2021 |
| Category No.: | N05 |
| Issued by: | SAMR; SAC |
| Issued on: | 2021-08-20 |
| Implemented on: | 2022-3-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 7500 words |
| Similar Standards: |
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