BS EN 33:2019 pdf free.WC pans and WC suites – Connecting dimensions.
BS EN 33 This document specifies the connecting dimensions of WC pans and WC suites regardless of the materials used for their manufacture.This document does not apply to siphonic action WC pans and WC suites.  NOTE 1 Other connecting dimensions are permitted, e.g. special designs of WC pans, if the manufacturer supplies or recommends the appropriate fittings. NOTE2 The shape of the appliance in the figures is for ilustration only; it in no way prejudices the final shape of the appliance, which is left to the initiative of the manufacturer. 2 Normative references There are no normative references in this document. 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: ●IEC Electropedia: available at http:/ /www.electropedia.org/ ●ISO Online browsing platform: available at http://www.iso.org/obp Diameter of the free space around the outlet Distance between the centre line of the outlet and the base of the appliance NOTE Other connecting dimensions are permitted for specific cases as, for example, WC pans and WC suites for children, for disabled persons or for comfort reasons. Distance from the plane passing through the end of the outlet and the base of the appliance.Distance between the vertical plane passing through the end of the outlet and the part of the WC suite nearest to the wall.If the WC pan manufacturer does not provide a WC seat with the WC pan or does not recommend a suitable WC seat model, the fixing dimensions for the WC seat shall comply with the dimensions given in Table 8 and Figure 2. The angle a is defined to ensure the stable position of the WC seat and its lid in the upright position (see Figures 3a to 3e). BS EN 33 pdf download.