# Commission Regulation (EU) No 142/2011 of 25 February 2011 implementing Regulation (EC) No 1069/2009 of the European Parliament and of the Council laying down health rules as regards animal by-products and derived products not intended for human consumption and implementing Council Directive 97/78/EC as regards certain samples and items exempt from veterinary checks at the border under that Directive (Text with EEA relevance), Division 2: In the case of a batch pressure system:

Extent: E+W+S+N.I.

(a)the temperature must be monitored with a permanent thermocouple and it must be plotted against real time;
(b)the pressure stage must be monitored with a permanent pressure gauge; pressure must be plotted against real time;
(c)the processing time must be shown by time/temperature and time/pressure diagrams.
At least once a year the thermocouple and the pressure gauge must be calibrated.

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Source: https://www.legislation.gov.uk/eur/2011/142/annex/XVI/chapter/I/section/2/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2011-142/annex-XVI/chapter-I/section-2/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.