1. BS EN 969:2009. Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods

2. BS EN 970:1997. Non-destructive examination of fusion welds - Visual examination

3. BS EN 973:2009. Chemicals used for treatment of water intended for human consumption - Sodium chloride for regeneration of ion exchangers

4. BS EN 974:2003. Chemicals used for treatment of water intended for human consumption - Phosphoric acid

5. BS EN 975-1:2009. Sawn timber - Appearance grading of hardwoods - Part 1: Oak and beech

6. BS EN 976-1:1997. Underground tanks of glass-reinforced plastics (GRP) - Horizontal cylindrical tanks for the non-pressure storage of liquid petroleum based fuels - Part 1: requirements and test methods for single wall tanks

7. BS EN 976-2:1997. Underground tanks of glass-reinforced plastics (GRP) - Horizontal cylindrical tanks for the non-pressure storage of liquid petroleum based fuels - Part 2

8. BS EN 977:1998. Underground tanks of glass-reinforced plastics (GRP) - Method for one side exposure to fluids

9. BS EN 978:1997. Underground tanks of glass-reinforced plastics (GRP) - Determination of factor a and factor b

10. BS EN 981:1997. Safety of machinery - System of auditory and visual danger and information signals