# Commission Regulation (EEC) No 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis, Division 8: Expression of results

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

The peroxide value (PV), expressed in milliequivalents of active oxygen per kilogram, is given by the formula:
PV = V × T × 1000 m
where:
V the number of ml of the standardised sodium thiosulphate solution (5.4) used for the test, corrected to take into account the blank test.
T the exact molarity of the sodium thiosulphate solution (5.4) used, in mol/l.
m the weight in g, of the test portion.
Take as the result the arithmetic mean of the two determinations carried out.
Report the result of the determination to one decimal place.

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Source: https://www.legislation.gov.uk/eur/1991/2568/annex/III/division/8 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-III/division-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.