Regulation 5

For the purpose of measuring and computing the field strength of the electro-magnetic energy and the terminal voltage at frequencies exceeding 150 kilohertz but not exceeding 1000 megahertz the radio-frequency heating apparatus shall be tested by means of measuring apparatus of the description and having the physical and electrical characteristics and performance set out in British Standard 727 : 1967, Section 1, Pages 9–13.

The tests for field strength shall be made by the method and under the conditions set out in Part 2 of Schedule 2 and the tests for terminal voltage shall be made by the method and under the conditions set out in Part 3 of Schedule 2.

The said field strength and terminal voltage shall be computed as provided in Parts 2 and 3 of Schedule 2 from the readings afforded by the measuring apparatus while the radio-frequency heating apparatus is operating.