Silicates de sodium et de potassium à usage industriel — Calcul du rapport dioxyde de silicium/oxyde de sodium ou dioxyde de silicium/ oxyde de potassium
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Reference:
ISO 1689:1976
Publication Year:
1976
Domain:
The document specifies the formula for the calculation. In this ratio, only sodium oxide and potassium oxide combined in the form of silicates is considered. Replaces ISO Recommendation R 1689-1970.
21 000 F CFA
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