Tests

4.  For the purposes of any test of an oil heater pursuant to these Regulations—

(a) the fuel used shall comply with the appropriate requirements of Appendix A to the British Standard Specification of 1974 and, in these Regulations, “fuel” shall be construed accordingly,

(b) the conditions under which the test is carried on shall comply with the requirements of Appendix B to that Specification and

(c) the heater shall be filled, lit and adjusted as specified in Appendix C to that Specification.