# The Milk (Special Designations) (Scotland) Order 1988, Paragraph 3


(1) Such indicating and recording thermometers as the local authority shall reasonably consider necessary shall be installed in suitable places in the apparatus in which the milk is treated by the ultra high temperature method so as to indicate the temperatures to which the milk is heated.
(2) The records of recording thermometers shall be marked with graduations adequately spaced to give clear readings, and they shall be dated and shall be preserved for a period of not less than three months.

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Source: https://www.legislation.gov.uk/uksi/1988/2191/schedule/4/paragraph/3 (the official version)
Page: https://openlegislation.uk/milk-special-designations-scotland-order-1988/schedule-4/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.