International Organization for Standardization (ISO)
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ISO 6607:1985
Scope
The method is applicable to ores containing between 1 and 25 % (m/m) silicon dioxide. Specifies principle, reagents, apparatus, sampling and preparation of samples, procedure, expression of results and test report.
ISO 6607:1985 history
1985ISO 6607:1985 Aluminium ores; Determination of total silicon content; Combined gravimetric and spectrophotometric method