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ISO 2996:1974Withdrawn

Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of particle size distribution by mechanical sieving

Tripolyphosphate et pyrophosphate de sodium à usage industriel — Analyse granulométrique par tamisage mécanique

Abstract / scope

Details the mechanical sieving of a test portion under fixed conditions by means of a series of circular test sieves and an automatic device, capable of applying to a set. Weighing of each of the fractions.Has also been approved by the IUPAC.