
DETERMINATION OF SUBSTANCES CHARACTERISTIC OF GREEN AND BLACK TEA - PART 2: CONTENT OF CATECHINS IN GREEN TEA - METHOD USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY
出版:International Organization for Standardization

专家解读视频
This part of ISO 14502 specifies a high-performance liquid chromatographic (HPLC) method for the determination of the total catechin content of tea from the summation of the individual catechins. It is applicable to both leaf and instant green tea, and with precision limitations to black tea (see Annex A).
GOST ISO 14502-2 : 2015 - Identical
NEN ISO 14502-2 : 2005 - Identical
DIN ISO 14502-2 E : 2007 - Identical
DIN ISO 14502-2 : 2007 - Identical
NEN ISO 14502-2 : 2005 C1 2006 - Identical
BS ISO 14502-2 : 2005 - Identical
DIN ISO 14502-2 E : 2007 - Identical
BS ISO 14502-2 : 2005 - Identical
NEN ISO 14502-2 : 2005 - Identical
DIN ISO 14502-2 : 2007 - Identical
NEN ISO 14502-2 : 2005 C1 2006 - Identical
GOST ISO 14502-2 : 2015 - Identical