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Norm
ÖNORM EN 15204
Issue date: 2006 12 01
Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Utermöhl technique)
The procedure described in this European Standard is based on the standard settling technique as defined by
Utermöhl in 1958 [31]. It describes a general procedure for t...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 44 Pages
Language:
German
| English
| Download GER/ENG
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ICS
The procedure described in this European Standard is based on the standard settling technique as defined by
Utermöhl in 1958 [31]. It describes a general procedure for the estimation of abundance and taxonomic
composition of marine and freshwater phytoplankton by using inverted light microscopy and sedimentation
chambers, including the preceding steps of preservation and storage. Emphasis is placed on optimizing the
procedure for the preparation of the microscopic sample. Many of the general principles of the approach
described may also be applied to other techniques of enumerating algae (or other entities) using a
(conventional) microscope, some of which are described in Annex E. This guidance standard does not cover
field collection of samples or the analysis of picoplankton, quantitative analysis of free-floating mats of
Cyanobacteria or specific preparation techniques for diatoms.
ÖNORM EN 15204
2006 12 01
Water quality - Guidance standard on the enumeration of phytoplankton using inverted microscopy (Ute...
Norm
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