Published
This third edition cancels and replaces the second edition (ISO 312-1980), of which it constitutes a minor revision. Specifies principle, reagents, apparatus, sample, procedure and expression of results. A figure gives an example of apparatus.
Revises
ISO 312:1980
PUBLISHED
ISO 312:1986
90.60
Close of review
Jun 5, 2021
ABANDON
ISO/WD 312
Manganese ores — Determination of active oxygen content, expressed as manganese dioxide — Titrimetric method
60.60 Standard published
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