1. BS 8000-13:1989. Workmanship on building sites - Part 13: Code of practice for above ground drainage and sanitary appliances

2. BS 8000-14:1989. Workmanship on building sites - Part 14: Code of practice for below ground drainage

3. BS 8000-15:1990. Workmanship on building sites - Part 15: Code of practice for hot and cold water services (domestic scale)

4. BS 8000-16:1997 + A1:2010.Workmanship on building sites - Part 16: Code of practice for sealing joints in buildings using sealants

5. BS EN 12255-11:2001 Wastewater treatment plants - Part 11: General data required

6. BS EN 12255-12:2003 Wastewater treatment plants - Part 12: Control and automation

7. BS EN 12255-13:2002 Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitationflocculation

8. BS EN 12255-14:2003 Wastewater treatment plants - Part 14: Disinfection

9. BS EN 12255-15:2003 Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants

10. BS EN 12255-16:2005 Wastewater treatment plants - Part 16: Physical (mechanical) filtration