# Council Directive 93/85/EEC of 4 October 1993 on the control of potato ring rot, Division 3.2.5

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

Divide the neat or concentrated sample extract into 2 equal parts. Maintain one half at 4 to 10 °C during testing and store the other half with 10 to 25 % (v/v) sterile glycerol at -16 to -24 °C (weeks) or at -68 to -86 °C (months) in case further testing is required.

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Source: https://www.legislation.gov.uk/eudr/1993/85/annex/I/division/3/division/3.2/division/3.2.5 (the official version)
Page: https://openlegislation.uk/eu-directive-1993-85/annex-I/division-3/division-3.2/division-3.2.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.