Current stage: 90.93 Standard confirmed Sep 10, 2020
Originator: ISO
Owner: ISO/TC 34/SC 8 Tea
Type: International Standard
ICS: 67.140.10 Tea
Status: Published
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The method consists in titrating of the filtrate from the determination of water-soluble ash, whith standard hydrochloric acid solution, using methyl orange as indicator.
PUBLISHED ISO 1578:1975 90.93 Standard confirmed Sep 10, 2020
