# Fourth Commission Directive of 11 October 1985 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (85/490/EEC), Division 6.3: Calibration curve

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

Inject at least three times 10,0 μl of each reference solution (4.12), measure the area of the peaks, and calculate the average area at each concentration.
Produce the calibration curve and verify that it is rectilinear.

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Source: https://www.legislation.gov.uk/eudr/1985/490/annex/division/3/division/B/division/6/division/6.3 (the official version)
Page: https://openlegislation.uk/eu-directive-1985-490/annex/division-3/division-B/division-6/division-6.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.