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Tea — Preparation of ground sample of known dry matter content
60.60 Standard published
Tea — Determination of water-soluble ash and water-insoluble ash
60.60 Standard published
Matcha tea - Definition and characteristics
40.20 DIS ballot initiated: 12 weeks
Oolong tea - Definition and basic requirements
40.20 DIS ballot initiated: 12 weeks
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
40.20 DIS ballot initiated: 12 weeks
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
40.20 DIS ballot initiated: 12 weeks
Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography
40.20 DIS ballot initiated: 12 weeks