New Standard from Last Update.

NATIONAL FOREWORD

This Indian Standard (Part 1) which is identical with 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’ issued by the International Organization for Standardization was adopted by the Bureau of Indian Standards, on recommendation of the Stimulant Foods Sectional Committee, and approval of the Food and Agriculture Division Council.

This Indian Standard is published in two parts. The other part in this series is:

Part 2 Content of catechins in green tea - Method using high-performance liquid chromatography