ISO 14502-1 : 2005(R2015)現行
DETERMINATION OF SUBSTANCES CHARACTERISTIC OF GREEN AND BLACK TEA - PART 1: CONTENT OF TOTAL POLYPHENOLS IN TEA - COLORIMETRIC METHOD USING FOLIN-CIOCALTEU REAGENT
出版：International Organization for Standardization
專家解讀視頻
Provides 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. Applicable to both green and black tea products.
DIN ISO 14502-1 : 2007 - Identical
DIN ISO 14502-1 E : 2007 - Identical
NEN ISO 14502-1 : 2005 C1 2006 - Identical
BS ISO 14502-1 : 2005 - Identical
GOST R ISO 14502-1 : 2010 - Identical
BS ISO 14502-1 : 2005 - Identical
GOST R ISO 14502-1 : 2010 - Identical
NEN ISO 14502-1 : 2005 C1 2006 - Identical
DIN ISO 14502-1 : 2007 - Identical
DIN ISO 14502-1 E : 2007 - Identical
