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联系人 Mr. jinlang
No. 13 Of East Lane 1, Beijing Middle Road, Hi-tech Zone, Xinshi, Urumqi, Xinjiang, China, Urumqi, Xinjiang Uygur
| Test items | Refined | High-purity grade | Food-grade | Industrial-grade | |||
| Sodium metabisulfite % | ≥ | *8.5 | *8 | *7.5 | *7.0 | ||
| Iron Fe % | ≤ | 0.***5 | 0.**1 | 0.***5 | 0.**2 | ||
| Water insoluble matter % | ≤ | 0.**5 | 0.*1 | 0.*2 | |||
| Arsenic As % | ≤ | 0.****5 | 0.***1 | 0.***1 | 0.***1 | ||
| Definition | Clarification | Clarification | Clarification | ||||
| Lead Pb % | ≤ | 0.****5 | 0.***5 | 0.***2 | |||
| NaCl % | ≤ | 0.**2 | |||||
| pH value | ≤ | 4.**4.6 | |||||
| Packaging: *5kg、*0kg、***0kg Weaving. | |||||||
