5. The following shall be substituted for regulation 5 of the 1988 Regulations—
(1) Subject to paragraph 2 below no furniture to which this regulation applies shall include upholstery which does not pass the cigarette test in Part I of Schedule 4 to these Regulations.
(2) An invisible part of the cover on any part of furniture which includes upholstery shall not be required to pass the test in paragraph (1) above if that upholstery (including such invisible part of the cover) passes the cigarette test in Part II of Schedule 4 to these Regulations.
(3) This regulation applies to all furniture (except mattresses, bed-bases, pillows and cushions).”