# Commission Directive 2006/56/EC of 12 June 2006 amending the Annexes to Council Directive 93/85/EEC on the control of potato ring rot, Division 3.1.3

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

Process the heel end cores by one of the following procedures: either,
(a) cover the cores with sufficient volume (approximately 40 ml) of extraction buffer (Appendix 3) and agitate on a rotary shaker (50 to 100 rpm) for four hours below 24 °C or for 16 to 24 hours refrigerated,
or
(b) homogenise the cores with sufficient volume (approximately 40 ml) of extraction buffer (Appendix 3), either in a blender (e.g. Waring or Ultra Thurax) or by crushing in a sealed disposable maceration bag (e.g. Stomacher or Bioreba strong guage polythene, 150 mm × 250 mm; radiation sterilised) using a rubber mallet or suitable grinding apparatus (e.g. Homex).

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Source: https://www.legislation.gov.uk/eudr/2006/56/annex/I/division/3/division/3.1/division/3.1.3 (the official version)
Page: https://openlegislation.uk/eu-directive-2006-56/annex-I/division-3/division-3.1/division-3.1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.