Paragraph 10
No person shall use for trade a measuring system unless—
(a)
it is compliant with the essential requirements other than the provisions relating to maximum permissible errors;
(b)
it is erected an installed so as to facilitate testing;
(c)
it operates within the maximum permissible errors in paragraph 11; and
(d)
the requirements of paragraphs 12 and 13 are complied with.