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ISO 6490-1:1985
M00003751
New product
ISO 6490-1:1985 Animal feeding stuffs - Determination of calcium content - Part 1 : Titrimetric method
standard by International Organization for Standardization, 11/01/1985
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Full Description
The method is applicable to products having contents greater than 1 g/kg. It consists in ashing of a test portion, treatment of the ash with hydrochloric acid and precipitation of the calcium as calcium oxalate, dissolution of the precipitation in sulfuric acid and titration with standard volumetric potassium permanganate solution of the oxalic acid formed.