# Council Directive 98/57/EC of 20 July 1998 on the control of Ralstonia solanacearum (Smith) Yabuuchi et al., Division 3.3

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

A positive ELISA test is achieved if the ELISA reading obtained from the culture is at least half that obtained for the positive control.

---
Source: https://www.legislation.gov.uk/eudr/1998/57/annex/II/section/VI/division/B/division/3/division/3.3 (the official version)
Page: https://openlegislation.uk/eu-directive-1998-57/annex-II/section-VI/division-B/division-3/division-3.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.