6 1 The insertion loss of the luminaire within the meaning of Clause 3.5 of BS 5394: Part I: 1976 as measured by the method prescribed in Clause 4 thereof shall not be less than the minimum values relevant to that luminaire prescribed in Clause 5 thereof (being values which are related to the frequencies at which the fluorescent lighting apparatus generates electro-magnetic energy).
2 In relation to the testing of a luminaire and the minimum values of insertion loss thereof the relevant procedures, requirements and specifications set out in BS 5394: Part I: 1976 shall be complied with.