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Norm
ISO 9768:1994
Issue date: 1994 07 28
Tea — Determination of water extract
The principle of the method specified is extraction of soluble matter from a test portion by boiling water under reflux, filtration, washing, drying and weighing of the h...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 3 Pages
Language:
English
ICS
The principle of the method specified is extraction of soluble matter from a test portion by boiling water under reflux, filtration, washing, drying and weighing of the hot-water-insoluble residue, calculation of the water extract.
