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ISO 18447
Tea - Determination of theaflavins in black tea - Method using high performance liquid chromatography
Edition
2021-06
ISO 14502-1
Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent
Edition
2005-03
ISO 14502-2
Determination of substances characteristic of green and black tea - Part 2: Content of catechins in green tea - Method using high-performance liquid chromatography
Edition
2005-03
ISO 14502-2 Technical Corrigendum 1
Determination of substances characteristic of green and black tea - Part 2: Content of catechins in green tea - Method using high-performance liquid chromatography; Technical Corrigendum 1
Edition
2006-04
ISO 14502-1 Technical Corrigendum 1
Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent; Technical Corrigendum 1
Edition
2006-04
NF T51-193 ; NF EN 16465:2015-11-28
Plastics - Method for the calibration of black-standard and white-standard thermometers and black-panel and white-panel thermometers for use in natural and artificial weathering
Edition
2015-11-28
VOB 2019 in English
German Construction Contract Procedures: Parts A, B and C - Translations of all VOB 2019 standards
Edition
2020-03
Keyboard layouts
Keyboard and input technology for text and office systems
Edition
2014-06
Surface texture
Theory and practical use
Edition
2020-06
Fasteners 5
Basic standards
Edition
2018-11
