This standard BS EN 232:2012 Baths. Connecting dimensions is classified in these ICS categories:
91.140.70 Sanitary installations
This European Standard specifies requirements for the connecting dimensions of baths, regardless of the material used for their manufacture.
This European Standard applies to baths used for domestic purposes and complements the standards for baths made from different materials, the existing standards on tap ware and waste fittings (EN 200 and EN 274-1) in terms of their dimensional requirements.
NOTE Only dimensions are compulsory. The shape of the appliance in the figures is for illustration only; it in no way prejudices the shape of the appliance which is left to the initiative of the manufacturer.