# Council Directive of 26 June 1964 on animal health problems affecting intra-Community trade in bovine animals and swine (64/432/EEC), Division 2.5.2

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

The antigen shall be prepared without reference to the cell concentration, but its sensitivity must be standardised in relation to the OIEISS in such a way that the antigen produces a positive reaction with a serum dilution of 1/45 and a negative reaction with a dilution of 1/55.

---
Source: https://www.legislation.gov.uk/eudr/1964/432/annex/C/division/2/division/2.5/division/2.5.2 (the official version)
Page: https://openlegislation.uk/eu-directive-1964-432/annex-C/division-2/division-2.5/division-2.5.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.