ISO 3235:1975
Sodium sulphate for industrial use — Determination of acid-insoluble matter
Reference number
ISO 3235:1975
ISO 3235:1975
Edition 1
1975-07
1975-07
© ISO 2024
Withdrawn
Abstract
Applicable to anhydrous and hydrated products. The principle consists in dissolution of a test portion in water, subsequent addition of hydrochloric acid. Heating on a boiling wather bath for 30 min, filtration, drying and weighing of the residue.
Life cycle
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