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sklademVydáno: 2005
ISO 14502-1:2005
ISO 14502-1:2005-Determination of substances characteristic of green and black tea-Part 1: Content of total polyphenols in tea — Colorimetric method using Folin-Ciocalteu reagent
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Označení normy: | ISO 14502-1:2005 |
Počet stran: | 10 |
Vydání: | 1 |
Vydáno: | 2005 |
Jazyk: | Anglicky |
DESCRIPTION
ISO 14502-1:2005
ISO 14502-1:2005 specifies a method for the determination of the total polyphenol content of leaf teas and instant teas by a colorimetric assay using Folin-Ciocalteu phenol reagent. It is applicable to both green and black tea products.