# Commission Regulation (EC) No 761/2009 of 23 July 2009 amending, for the purpose of its adaptation to technical progress, Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) (Text with EEA relevance), Division 1.8.14: Modification for strongly coloured substances

Extent: E+W+S+N.I.

The irradiation (light intensity) should be in the highest end of the range prescribed in this Testing Method: 120µE m-2 s-1 or higher.
The light path should be shortened by reduction of the volume of the test solutions (in the range of 5-25 ml).
Sufficient agitation (for example by moderate shaking) should be performed in order to obtain a high frequency of exposure of the algae to high irradiation at the surface of the culture.

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Source: https://www.legislation.gov.uk/eur/2009/761/annex/IV/division/1/division/1.8/division/1.8.14 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-761/annex-IV/division-1/division-1.8/division-1.8.14
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.