# Council Directive of 26 June 1964 on animal health problems affecting intra-Community trade in bovine animals and swine (64/432/EEC), Division 2.1.3

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

The standard reference sera for enzyme-linked immunosorbent assays (ELISAs) shall be:
the OIEISS,
the weak positive OIE ELISA standard serum (OIEELISA WP SS),
the strong positive OIE ELISA standard serum (OIEELISA SP SS),
the negative OIE ELISA standard serum (OIEELISA N SS).

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Source: https://www.legislation.gov.uk/eudr/1964/432/annex/C/division/2/division/2.1/division/2.1.3 (the official version)
Page: https://openlegislation.uk/eu-directive-1964-432/annex-C/division-2/division-2.1/division-2.1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.