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| Chinese National Standard Category: Basic refractory |
| English Title: | Magnesia-chrome refractory Methods for chemical analysis - Part 12: Flame atomic absorption spectrometry determination of potassium oxide and sodium oxide |
| Chinese Title: | 镁铬质耐火材料化学分析方法 第12部分: 火焰原子吸收光谱法 测定氧化钾、氧化钠量 |
| Standard No.: | GB/T 5070.12-2002 |
| Category No.: | Q43 |
| Issued by: | AQSIQ |
| Issued on: | 2002-01-02 |
| Implemented on: | 2003-6-1 |
| Status: | valid |
| Superseded by: | GB/T 5070-2007 Chemical analysis of refractories containing chrome |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 5070.10-1985 Magnesite-chrome refractories--Determination of potassium oxide and sodium oxide content--Atomic absorption spectrophotometric method |
| Word Count: | 3000 words |
| Similar Standards: |
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