DIN ISO 14502-1:2006-12

Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent (ISO 14502-1:2005 + Corrigendum 1:2006)

Détermination des substances caractéristiques du thé vert et du thé noir - Partie 1: Dosage des polyphénols totaux dans le thé - Méthode colorimétrique utilisant le réactif de Folin-Ciocalteu (ISO 14502-1:2005 + Corrigendum 1:2006)

Untersuchung von charakteristischen Substanzen von grünem und schwarzem Tee - Teil 1: Bestimmung der Gesamtpolyphenole in Tee - Colorimetrisches Verfahren mit Folin-Ciocalteu-Reagenz (ISO 14502-1:2005 + Corrigendum 1:2006)

Información:

Fecha Anulación:

2017-11 /Withdrawn

ICS:

67.140.10 - Tea

Equivalencias internacionales:

ISO 14502-1 Technical Corrigendum 1 (2006-04)

ISO 14502-1 (2005-03)

Relación con otras normas DIN:

Reemplazada por: DIN ISO 14502-1:2007-11

Resumen:

This standard describes a spectrometric method for the determination of total polyphenol content content of green and black tea with Folin-Ciocalteu phenol reagent. It is applicable to both black and green tea products.

Keywords:

Agricultural products, Analysis, Chemical analysis and testing, Colorimetry, Determination of content, Food products, Investigations, Polyphenols, Sampling methods, Substances, Tea, Test reports

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