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Standard

NS-EN 17899:2024

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Abstract

This document describes a spectrophotometric method for determining the chlorophyll-a content corrected for phaeopigments as a measure of the amount of phytoplankton for all types of surface water including marine water. The determination limit is usually 2 µg/l to 5 µg/l and is calculated by each laboratory individually. It can be as low as 0,5 µg/l using 2 l of sample (or even more) and a 50 mm cuvette.NOTE In some measurement programs like marine studies on time series data and ecological status/classification no correction for phaeopigments is used and acidification is omitted, e.g. as recommended by OSPAR.

Document information

  • Standard from SN
  • Published:
  • Edition: 2024-07
  • Version: 1
  • Document type: NAT
  • ICS 13.060.70
  • ICS 71.040.50
  • National Committee SN/K 153

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  • Adopted from: EN 17899:2024 , 0