1. BS EN 935:2004. Chemicals used for treatment of water intended for human consumption - Aluminium iron (III) chloride (monomeric) and aluminium iron (III) chloride hydroxide (monomeric)

2. BS EN 936:2013. Chemicals used for treatment of water intended for human consumption - Carbon dioxide

3. BS EN 937:2016. Chemicals used for treatment of water intended for human consumption - Chlorine

4. BS EN 938:2016. Chemicals used for treatment of water intended for human consumption - Sodium chlorite

5. BS EN 939:2016. Chemicals used for treatment of water intended for human consumption - Hydrochloric acid

6. BS EN 940:2009 + A1:2012 Safety of woodworking machines - Combined woodworking machines

7. BS EN 941:2014. Aluminium and aluminium alloys - Circle and circle stock for the production of general applications - Specifications

8. BS EN 942:2007 Timber in joinery - General requirements

9. BS EN 943-1:2015. Protective clothing against dangerous solid, liquid and gaseous chemicals, includingliquid and solid aerosols - Part 1: Performance requirements for Type 1 (gas-tight) chemical protective suits

10. BS EN 953: 1997 + A1:2009. Safety of machinery - Guards - General requirements for the design and construction of fixed and movable guards