British Standards Institution

BS 1188
Specification for ceramic washbasins and pedestals.

BS 1206
Specification for fireclay sinks. Dimensions and workmanship.

BS 1212-3 
Float operated valves. Specification for diaphragm type float operate valves (plastics bodied) for cold water services only (excluding floats).

BS 1212-4
Float operated valves. Specification for compact type float operated valves for WC flushing cisterns (including floats).

BS 1254
Specification for WC seats (plastics).

BS1876
Specification for automatic flushing cisterns for urinals.

BS2456
Specification for floats (plastics) for float operated valves for cold water services.

BS 3402
Specification for quality of vitreous china sanitary appliances.

BS5505-3
Specification for bidets. Vitreous china bidets over rim supply only. Quality, workmanship and functional dimensions other than connecting dimensions.

BS5506-3
Specification for washbasins.Washbasins )one or three tapholes). Materials, quality, design and construction.

BS 5520
Specification for vitreous china bowl urinals (rimless type).

BS 5627
Specification for plastic connectors for use with horizontal outlet Vitreous China WC pans.

BS 6465-1
Sanitary Installations.Code of practice for the design of sanitary facilities and scales of provision of sanitary and associated appliances.

BS 6465 Part - 2
Sanitary Installations.Code of Practice for space requirements for sanitary appliances.

BS 6465-3
Sanitary Installations.Code of practice for the selection, installation and maintenance of sanitary and associated appliances.

BS6465-4
Sanitary Installations.Code of practice for the provision of public toilets.

BS EN 31
Washbasins.Connecting dimensions.

BS EN 32
Obsolete – now incorporated into BS EN 31. 

BS EN 33
WC pans and WC suites.Connecting dimensions.

EN 34 (BS 5504 – 1)
Obsolete – now incorporated into BS EN 33.

BS EN 35
Pedestal Bidets with over-rim supply.Connecting Dimensions.

BS EN 36 
Wall Hung Bidets with over-rim supply. Connecting Dimensions.

BS EN 37 
Obsolete – now incorporated into BS EN 33. 

EN 38
Obsolete – now incorporated into BS EN 33. 

BS EN 80
Wall hung urinals. Connecting dimensions.

BS EN 695
Kitchen sinks. Connecting dimensions.

BS EN 997
WC pans and WC suites with integral trap.

BS EN 13310 
Kitchen sinks. Functional requirements and test methods.

BS EN 13407
Wall hung urinals. Functional requirements and test methods.

BS EN 14055 
WC and urinal flushing cisterns.

BS EN 14124
Inlet valves for flushing cisterns with internal overflow.

BS EN 14528 
Bidets. Functional requirements and test methods.

BS EN 14688
Sanitary Appliances..Washbasins. Functional requirements and test methods.

Water Supply (Water Fittings) Regulations 1999
The Water Fittings Regulations 1999 (or Byelaws 2000 in Scotland) are national requirements for the design, installation and maintenance of plumbing systems, water fittings and water-using appliances. Their purpose is to prevent misuse, waste, undue consumption or erroneous measurement of water and contamination of drinking water. 

www.defra.gov.uk/environment/water/industry

Note: References to water regulations apply to England and Wales. Data may vary for Scotland and Northern Ireland – please check for specific regulations applicable.