BS EN 233:2016 pdf download.Wallcoverings in roll form — Specification for finished wallpapers, wall vinyls and plastics wallcoverings.
5 Specifications 5.1 General The dimensions specified for the three categories of covering shall be measured in accordance with the requirements of EN 12956. See Annex A. 5.2 Dimensions 5.2.1 General This applies to the usable dimensions of the product. 5.2.2 Category 1 The area of the roll shall be 5,326 m 2 ± 3 %. The nominal width and length of a roll shall be marked. The actual width and length shall not deviate from the nominal values by more than 1,5 %. The nominal width shall be not less than 500 mm and not greater than 530 mm. 5.2.3 Category 2 The nominal width and length of a roll shall be marked. The tolerance on the actual width and length shall be ± 1,5 %. The nominal width shall be not less than 600 mm. 5.2.4 Category 3 (friezes) The nominal length of a roll shall be marked. The tolerance on the actual length shall be ± 1,5 % in the case of roll of length not less than 10 m, otherwise ± 3 %. The nominal width shall be not less than 32 mm and not greater than 500 mm.
5.3 Straightness and parallelity of the edges The straightness and parallelity of the edges shall be measured in accordance with the requirements of EN 12956. The edges of the roll shall be straight and parallel over its entire length, with the following tolerances: — straightness: over any 1 m length, the edges shall not deviate more than 1 mm from straight; — parallelity: the 3 width measurements taken in accordance with the requirements of EN 12956 shall not differ by more than 1 mm. 5.4 Spongeability For a wallcovering claimed to be spongeable, it shall be possible to wipe off the hanging adhesive while it is still damp from the front face of the wallcovering with a damp cloth or sponge without causing visible damage.BS EN 233 pdf download.