This standard was last reviewed and confirmed in 2018. Therefore this version remains current.
The principle consists in titration of a test portion with a standard volumetric solution of sodium hydroxide in presence of bromcresol green as indicator. Replaces ISO Recommendation R 904-1968.
Status: PublishedPublication date: 1976-11
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 47 Chemistry
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