(a)
91/666/EEC: Council Decision of 11 December 1991 establishing Community reserves of foot-and-mouth disease vaccines · European Union
the antigen shall have been inactivated before concentration using a first order inactivant. For each batch of antigen the kinetics of inactivation must be followed and documented by the producer. The range of inactivation must be such that the batch as a whole is free from infective virus, and the safety margin should be in the range of about 3 log10 (based on extrapolation); and
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Source: EUR-Lex (Cellar) · retrieved 2026-11-08 · Text as adopted (Official Journal); later amendments are not incorporated in this text.