Versions of s. 258(1)(f)
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a certificate of an analyst stating that the analyst has made an analysis of a sample of an alcohol standard that is identified in the certificate and intended for use with an approved instrument and that the sample of the standard analyzed by the analyst was found to be suitable for use with an approved instrument, is evidence that the alcohol standard so identified is suitable for use with an approved instrument without proof of the signature or the official character of the person appearing to have signed the certificate;