BS 4020:1974
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Methods for the estimation and differentiation of nisin in processed cheese
Hardcopy , PDF
15-03-1995
English
14-02-1974
Estimation; differentiation from most other antibiotics and antimicrobials which might be present; confirmation of identity in commercial preparations; recommendations on use of nisin.
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