# Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (Text with EEA relevance), Division 8.5

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

If after boiling it is difficult to filter the acidic and basic solutions, use compressed air through the discharge pipe of the heating unit and then continue filtering.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/III/division/I/division/8/division/8.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-III/division-I/division-8/division-8.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.