# Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Text with EEA relevance), Division 4: The following parameters determined on the basis of the mass of a liming material shall be met:

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

(a) minimum neutralising value: 15 (equivalent CaO) or 9 (equivalent HO-),
(b) minimum reactivity: 10 % (hydrochloric acid test) or 50 % after 6 months (incubation test), and
(c) minimum grain size: at least 70 % < 1 mm, except for burnt limes, granulated liming material and chalk (at least 70 % of the liming material shall pass through a 1 mm sieve).

---
Source: https://www.legislation.gov.uk/eur/2019/1009/annex/I/part/II/division/28/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-1009/annex-I/part-II/division-28/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.