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| International Standard Category: Laboratory ware and related apparatus |
GB 11415-1989 Laboratory sintered(fritted) filters-Porosity grading, classification and designation
实验室烧结(多孔)过滤器 孔径、分级和牌号;
| Category No.: | 71.040.20 | Valid Status: | valid |
| Issued Organization: | AQSIQ | Issued Date: | 1989-6-8 |
| Implemented Date: | 1990-2-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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