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| International Standard Category: Chemical reagents |
GB 6857-2008 pH Primary reagent—Potassium hydrogen phthalate
pH 基准试剂 邻苯二甲酸氢钾 ;
| Category No.: | 71.040.30 | Valid Status: | valid |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2008-12-31 |
| Implemented Date: | 2009-6-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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