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Division 4 The following parameters determined on the basis of the mass of a liming material shall be met:

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    minimum neutralising value: 15 (equivalent CaO) or 9 (equivalent HO-),

  2. (b)

    minimum reactivity: 10 % (hydrochloric acid test) or 50 % after 6 months (incubation test), and

  3. (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).