This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The procedure specified can be applied for phytoplankton in natural surface waters and for testing algal growth in bio-assays. Using appropriate sampling it can also be applied to phytobenthic communities. The principle is collection of algae by filtration, extraction of algal pigments, spectrometric determination of the chlorophyll-a concentration in the extract, evaluation of the chlorophyll-a and phaeopigment concentration from the difference of absorbance at 665 nm prior to and after acidification of the extract.
Status : PublishedPublication date : 1992-07
Edition : 1Number of pages : 6
Technical Committee:Physical, chemical and biochemical methods
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