# The Milk (Special Designations) (Scotland) Order 1988, Paragraph 5: Control tubes


A sample of laboratory-sterilised milk shall be prepared by heating milk for at least twenty minutes after it has reached boiling point in a vessel placed in a boiling water bath. Control tubes shall be prepared by taking a sample of laboratory-sterilised milk and subjecting it to the test procedure detailed in sub-paragraph (a) of the last foregoing paragraph.

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Source: https://www.legislation.gov.uk/uksi/1988/2191/schedule/6/part/IV/paragraph/5 (the official version)
Page: https://openlegislation.uk/milk-special-designations-scotland-order-1988/schedule-6/part-IV/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.