GSO ISO 18447:2023
ISO 18447:2021
Gulf Standard
Current Edition
·
Approved on
03 May 2023
Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography
GSO ISO 18447:2023 Files
English
19 Pages
Current Edition
Reference Language
165.67 USD
GSO ISO 18447:2023 Scope
This document specifies a high performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) method for the determination of content of the four major theaflavins of tea.
It is applicable to both leaf and instant black and oolong teas. The method is currently not validated for ready-to-drink (RTD) beverages.
Best Sellers From Food and Agriculture Sector
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
YSMO GSO 150-2:2020
GSO 150-2:2013
Yemeni Technical Regulation
Expiration dates for food products - Part 2 :
Voluntary expiration dates
YSMO GSO 2055-1:2020
GSO 2055-1:2015
Yemeni Standard
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements
Recently Published from Food and Agriculture Sector
GSO ISO 17468:2025
ISO 17468:2023
Gulf Standard
Microbiology of the food chain — Technical requirements and guidance on the establishment or revision of a standardized reference method
GSO 2806:2025
Gulf Standard
Advisory Lists of Nutrient Compounds for Use in Foods for Special Dietary Uses Intended for Infants and Young Children
GSO ISO 7541:2025
ISO 7541:2020
Gulf Standard
Spices and condiments — Spectrophotometric determination of the extractable colour in paprika
GSO ISO 20631:2025
ISO 20631:2024
Gulf Standard
Infant formula and adult nutritionals — Determination of total folate content by trienzyme extraction and ultra high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS)