# Weights and Measures (Northern Ireland) Order 1981, Paragraph 1


In this Schedule, “ballast” means any of the following materials, that is to say—
(a) sand, gravel, shingle, ashes and clinker of any description;
(b) broken slag, slag chippings, granite chippings, limestone chippings, slate chippings and other stone chippings (including such materials which have been coated with tar, bitumen or cement);
(c) any other material commonly used in the building and civil engineering industries as a hardcore or an aggregate;
(d) any other material commonly known in the said industries as ballast.

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Source: https://www.legislation.gov.uk/nisi/1981/231/schedule/4/paragraph/1 (the official version)
Page: https://openlegislation.uk/weights-and-measures-northern-ireland-order-1981/schedule-4/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.