Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent (ISO 14502-1:2005 + Corrigendum 1:2006)
€69.91
Determination of substances characteristic of green and black tea - Part 2: Content of catechins in green tea - Method using high-performance liquid chromatography (ISO 14502-2:2005 + Corrigendum 1:2006)
€98.32
Analysis of tea - Determination of total ash
€41.78
Analysis of tea - Determination of loss in mass of unground tea at 103 °C
Analysis of tea - Preparation of ground sample of defined dry matter content
Tea - Determination of water extract (ISO 9768:1994)
Analysis of tea and tea products - Determination of theobromine and caffeine content of fluid tea drinks - Part 1: HPLC-Routine method
€48.79
Analysis of tea; determination of acid insoluble ash
Analysis of tea; preparation of liquor for use in sensory tests
Analysis of tea; determination of total ash
Analysis of tea; determination of loss in mass of unground tea at 103 °C
Analysis of tea; preparation of ground sample of defined dry matter content
