ISO 3428:1976 Sodium fluoride for industrial use -- Preparation and storage of test samples

standard by International Organization for Standardization, 04/01/1976

Full Description

Relates to crude samples intended for the determination of moisture content and dried samples for chemical tests. Processing by grinding and sieving until the sample passes completely through a sieve of mesh aperture 0.125 mm. Thoroughly mixing and drying and storing in a tightly closed container.