Sivapalan, K.De Silva, J.2015-06-192015-06-191985Sri Lanka Journal of Tea Science54(1)pp.26-31https://dl.nsf.gov.lk/handle/1/19655IndustryBlack teaTea qualityChemical constituentsQuality standardsMarketing standardsMarket valueTheaflavinAgricultureTea constituents and export standards of Sri Lanka teasArticle