Water quality - Guidance standard for the surveying, sampling and laboratory analysis of phytobenthos in shallow running water; German version EN 15708:2009— 25 стр.
Water quality - Guidance standard for the identification, enumeration and interpretation of benthic diatom samples from running waters; German version EN 14407:2004— 19 стр.
Water quality - Guidance on assuring the quality of biological and ecological assessments in the aquatic environment; German version EN 14996:2006— 24 стр.
Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermцhl technique); German version EN 15204:2006— 60 стр.
Water quality - Biological classification of rivers - Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates (ISO 8689-2:2000); German version EN ISO 8689-2:2000— 11 стр.
