Tea and instant tea in solid form - Determination of caffeine content - Method using high-performance liquid chromatography (ISO 10727:2002)
€63.27
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 acid insoluble ash
€41.78
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
Tea; determination of water-soluble ash and water-insoluble ash; identical with ISO 1576:1988
Analysis of tea - Determination of fluoride content - Potentiometric method
Analysis of tea and tea products - Determination of theobromine and coffeine content of instant tea in solid form and instant tea products - HPLC-method
Analysis of tea and tea products - Determination of theobromine and caffeine content of fluid tea drinks - Part 2: HPLC-reference method (for low theobromine contents also)
Tea. Classification of grades by particle size analysis
€172.00
Determination of substances characteristic green and black tea Content catechins in tea. Method using high-performance liquid chromatography
€281.00
Determination of substances characteristic green and black tea Content total polyphenols in tea. Colorimetric method using Folin-Ciocalteu reagent
€201.00
