# Council Directive 98/57/EC of 20 July 1998 on the control of Ralstonia solanacearum (Smith) Yabuuchi et al., Division

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

Use positive and negative control samples as described above (see Appendix 3).
Test control material in an identical manner as the sample(s).
A variety of methods are available for purification of target DNA from complex sample substrates, thus removing inhibitors of PCR and other enzymatic reactions and concentrating target DNA in the sample extract. The following method has been optimised for use with the validated PCR methods shown in Appendix 6.

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Source: https://www.legislation.gov.uk/eudr/1998/57/annex/II/section/VI/division/A/division/6/division/6.1/division/1 (the official version)
Page: https://openlegislation.uk/eu-directive-1998-57/annex-II/section-VI/division-A/division-6/division-6.1/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.