This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
A test portion is evaporated in a tared platinum dish and the residue is weighed after drying at 105 2 °C. The method is applicable to solutions containing not more than 35 % (m/m) ammonia.
Status: PublishedPublication date: 1985-06
Edition: 1Number of pages: 1
Technical Committee: ISO/TC 47 Chemistry
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