This European Standard applies to all forms of wallcovering products in roll form supplied for hanging onto internal walls@ partitions or ceilings@ by means of an adhesive@ whose primary purpose is decorative. However@ certain wallcovering products may confer minor sound absorption and thermal resistance properties. It also provides for the evaluation of conformity and the assessment and verification of constancy of performance (AVCP) of products to the requirements of this standard. It does not apply to wallcoverings whose primary purpose is structural or protective (e.g. vapour or moisture).