BS 6465-3:2020 pdf free.Sanitary installations.Code of practice for the selection, installation and maintenance of sanitary and associated appliances. BS 6465-3 This part of BS 6465 gives recommendations for the selection, installation and maintenance of sanitary (water-using and waterless) and associated appliances to be provided in new and refurbished buildings. It does not cover specialist appliances, such as those used for...