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| Chinese National Standard Category: Special instruments for schools |
| English Title: | General provisions of safety and health for chalkboards |
| Chinese Title: | 黑板安全卫生要求 |
| Standard No.: | WS 99-1998 |
| Category No.: | Y52 |
| Issued by: | MOH |
| Issued on: | 1998-5-25 |
| Implemented on: | 1998-10-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 3000 words |
| Similar Standards: | JY 104-1982 JY 111-1982 GB/T 37773-2019 JY/T 0593-2019 JY/T 0392-2007 WS 99-1998 |
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