Rationale

Annex A2.1.2 currently refers to a “standard cushion,” but E648 does not define or specify the standard cushion. Section 9.2.1 of E648 already requires carpets to be “mounted over the cushion proposed for use, or over the cushion recommended by the carpet manufacturer for use in the installation.” The proposed revision aligns Annex A2 with Section 9 by clarifying that test results apply only to the specific carpet/cushion system tested.