# Third Commission Directive of 27 September 1983 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (83/514/EEC), Division 6: CALCULATION

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

Let:
m the mass (in milligrams) of the test sample.
n the quantity of mercury (in μg) read on the instrument.
The quantity of mercury, expressed as mercury, as percentage by mass, is calculated by the formula:
% mercury = n m

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Source: https://www.legislation.gov.uk/eudr/1983/514/annex/division/18/division/1/division/B/division/6 (the official version)
Page: https://openlegislation.uk/eu-directive-1983-514/annex/division-18/division-1/division-B/division-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.