This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
The method consists in treating of the total ash (obtained as described in ISO 1575) with hydrochloric acid solution, filtrating, igniting and weighing of the residue.
Status: PublishedPublication date: 1987-10
Edition: 2Number of pages: 2
Technical Committee: ISO/TC 34/SC 8 Tea
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