Regulation 6 Prescribed fee
A listed laboratory may require a fee to be paid by the applicant in connection with the work done or to be done by it under regulation 5 (in regulation 5 described as the prescribed fee) and the fee in every case shall not exceed the sum of—
(a)
the costs of the listed laboratory of and in connection with the work done or to be done by it under regulation 5; and
(b)
an amount on account of profit which is reasonable in the circumstances having regard to—
(i)
the character and the extent of the work done or to be done by the listed laboratory under regulation 5, and
(ii)
the commercial rate normally charged on account of profit for that work or similar work.