1. BS EN 12237:2003 Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts

2. BS EN 12238:2001 Ventilation for buildings - Air terminal devices - Aerodynamic testing and rating for mixed flow application

3. BS EN 12245:2009 + A1:2011 Transportable gas cylinders - Fully wrapped composite cylinders

4. BS EN 12249:1999 Sawn timber used in pallets - Permitted deviations and guidelines for dimensions

5. BS EN 12254:2010 Screens for laser working places - Safety requirements and testing

6. BS EN 12255-1:2002 Wastewater treatment plants - Part 1: General construction principles

7. BS EN 12255-10:2001 Wastewater treatment plants - Part 10: Safety principles

8. BS 7438:1991. Specification for Steel and copper alloy wafer check valves, single disk, spring-loaded type

9. BS 7439:1991. Method for Exchange of information for the analytical assessment of shock resistance of mechanical systems

10. BS 7445-1:2003. Description and measurement of environmental noise - procedures