BS EN 17399:2020 pdf free.Algae and algae products - Terms and definitions. BS EN 17399 1 Scope This document defines the terms related to functions, products, and properties of algae and algae products. In order to better pack the methodologies, algae are regarded as a functional group of organisms consisting of microal gpae, macroalgae, cyanobacteria and Labyrinthulomycetes. 2 Normative references...