3.2.5.

A statement of the method used for the definition of the apparent surface (see paragraph 2.10.4.).
The method used to determine the apparent surface shall be declared for each lamp, as defined in paragraph 2.5., and recorded in item 10.2. of Annex 1.

 a2c0
3.2.5. A statement of the method used for the definition of the apparent surface (see paragraph 2.10.4.); a0c0