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| Chinese National Standard Category: Other material composition analyzer |
| English Title: | General technical specifications for cleaners of welding fume |
| Chinese Title: | 呼吸性粉尘个体采样器技术条件 |
| Standard No.: | LD 40-1992 |
| Category No.: | N55 |
| Issued by: | |
| Issued on: | 1992-12-19 |
| Implemented on: | 1993-10-1 |
| Status: | superseded |
| Superseded by: | AQ 4204-2008 Personal sampler for respirable dust |
| Superseded on: | 2009-1-1 |
| Abolished on: | 2009-01-01 |
| Superseding: | |
| Word Count: | words |
| Similar Standards: | HJ/T 93-2003 LD 40-1992 QB/T 1676-1992 |
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