1. BS EN 13443-2:2005 + A1:2007 Water conditioning equipment inside buildings - Mechanical filters - Part 2: Particle rating 1 4m to less than 80 4m -Requirements for performance, safety and testing

2. BS EN 62271-206:2011. High-voltage switchgear and controlgear - Part 206: Voltage presence indicating systems for rated voltages above 1 kV and up to and including 52 kV

3. BS EN 13445-1:2014 + A1:2014 Unfired pressure vessels - Part 1: General

4. BS EN 62271-207:2012. High-voltage switchgear and controlgear - Part 207: Seismic qualification for gas-insulated switchgear assemblies for rated voltages above 52 kV

5. BS EN 13445-2:2014 Unfired pressure vessels - Part 2: Materials

6. BS EN 62271-209:2007. High-voltage switchgear and controlgear - Part 209

7. BS EN 13445-3:2014 + A1:2015 Unfired pressure vessels - Part 3: Design

8. BS EN 62271-211:2014. High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV

9. BS EN 13445-4:2014 Unfired pressure vessels - Part 4: Fabrication

10. BS EN 62271-3:2015. High-voltage switchgear and controlgear - Part 3: Digital interf