1. BS EN 12566-4:2007 Small wastewater treatment systems for up to 50 PT - Part 4: Septic tanks assembled in situ from prefabricated kits

2. BS EN 1993-5:2007 Eurocode 3 - Design of steel structures - Part 5: Piling

3. BS EN 12118:1998 Plastics piping systems - Determination of moisture content in thermoplastics by coulometry

4. BS EN 12566-6:2013 Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent

5. BS EN 1993-6:2007 Eurocode 3 - Design of steel structures - Part 6: Crane supporting structures

6. BS EN 12119:1997 Plastics piping systems - Determination of moisture content in thermoplastics by coulometry

7. BS EN 12566-7:2013 Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment units

8. BS EN 1994-1-1:2004 Eurocode 4 - Design of composite steel and concrete structures - Part 1-1: General rules and rules for buildings

9. BS EN 12120:2012 Chemicals used for treatment of water intended for human consumption - Sodium hydrogen sulfite

10. BS EN 12567:2000 Industrial valves - Isolating valves for LNG - Specification for suitability and ppropriate verification tests