# First Commission Directive of 25 October 1985 on methods of analysis for edible caseins and caseinates (85/503/EEC), Division 2

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

If a series of samples is being tested, check the calibration of the pH meter with one or more of the standard buffer solutions at least every 30 minutes.

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Source: https://www.legislation.gov.uk/eudr/1985/503/annex/II/division/7/division/1/division/6/division/6.2/division/6.2.1/annotations/1/annotation/2 (the official version)
Page: https://openlegislation.uk/eu-directive-1985-503/annex-II/division-7/division-1/division-6/division-6.2/division-6.2.1/annotations/1/annotation/2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.