# 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 4: REAGENTS

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

All reagents shall be of analytical quality.
Extracting solvents.
4.1.Distilled water or deionised water of equivalent purity.
4.2.Ethanol, 15 % v/v. Prepare by mixing 15 parts of absolute ethanol with 85 parts of water (point 4.1).
4.3.Acetic acid, 5 % m/m. Prepare by mixing 5 parts of glacial acetic acid with 95 parts of water (point 4.1).

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Source: https://www.legislation.gov.uk/eur/2019/934/annex/I/division/3/division/1/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-934/annex-I/division-3/division-1/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.