This standard specifies constructional and performance requirements together with test methods for close-coupled suites, one-piece and independent WC pans with integral trap used for personal hygiene manufactured from vitreous china or stainless steel. This standard does not apply to squatting toilettes, WC pans without integral trap, flushing cisterns as separate appliances. Flushing cisterns are covered by other standards and the reference to cisterns in this standard is related only to the definition and requirements of flushing volume.