Protection of the Environment Operations (General) Regulation 2009
60 Methodology for testing for matter in waters
(1) This clause applies if a person is required by or under the environment protection legislation, or a licence or notice under that legislation, to test for the presence or concentration of matter in any waters.(2) The test methodology is to be—(a) the methodology specified in the requirement for testing, or(b) if no such methodology is specified, the methodology prescribed in the Approved Methods Publication in relation to that matter.(3) The procedural details of the test methodology may be varied by the person conducting the test so long as the person can establish that the variation is not such as can affect the results of the test.(4) This clause does not apply to a person who is acting in the administration or execution of the environment protection legislation.