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YS/T 1289-2018 Determination of lanthanum oxide in tungsten-lanthanum alloys- Na2EDTA titration method
钨镧合金中三氧化二镧含量的测定 Na2EDTA滴定法
| Category No.: | YS | Valid Status: | valid |
| Issued Organization: | Ministry of Industry and Information Technology | Issued Date: | 2018-10-22 |
| Implemented Date: | 2019-4-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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