1. BS EN 890:2012. Chemicals used for treatment of water intended for human consumption - Iron (III) sulfate solution

2. BS EN 891:2004. Chemicals used for treatment of water intended for human consumption - Iron (III) chloride sulfate

3. BS EN 894-4:2010. Safety of machinery - Ergonomics requirements for design of displays and control actuators - Part 4: Location and arrangement of displays and control actuators

4. BS EN 895:1995. Destructive tests on welds in metallic materials - Transverse tensile test

5. BS EN 896:2012. Chemicals used for treatment of water intended for human consumption - Sodium hydroxide

6. BS EN 897:2012. Chemicals used for treatment of water intended for human consumption - Sodium carbonate

7. BS EN 898:2012. Chemicals used for treatment of water intended for human consumption - Sodium hydrogen carbonate

8. BS EN 899:2009. Chemicals used for treatment of water intended for human consumption - Sulfuric acid

9. BS EN 900:2014. Chemicals used for treatment of water intended for human consumption - Calcium hypochlorite

10. BS EN 901:2013. Chemicals used for treatment of water intended for human consumption - Sodium hypochlorite