# Commission Delegated Regulation (EU) 2019/934 of 12 March 2019 supplementing Regulation (EU) No 1308/2013 of the European Parliament and of the Council as regards wine-growing areas where the alcoholic strength may be increased, authorised oenological practices and restrictions applicable to the production and conservation of grapevine products, the minimum percentage of alcohol for by-products and their disposal, and publication of OIV files, Division 7: EXPRESSION OF THE RESULTS

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

7.1.Formula and calculation of results
The organic matter extracted from ion exchange resins, in mg/l, is given by:
500 (m1 – m2)
where m1 and m2 are expressed in grams.
The corrected weight (mg/l) of the organic matter extracted from ion exchange resins is given by:
500 (m1 – m2 – m3 + m4)
where m1, m2, m3 and m4 are expressed in grams.
7.2.The difference in the results between two parallel determinations carried out on the same sample must not exceed 0,2 mg/l.

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Source: https://www.legislation.gov.uk/eur/2019/934/annex/I/division/3/division/1/division/7 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-934/annex-I/division-3/division-1/division-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.