1. BS EN 1638:1997 BS 2782: Part 12: Method 1223D:1997 Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes -Test method for the effects of cyclic internal pressure

2. BS EN 1643:2014 Safety and control devices for gas burners and gas burning appliances - Valve proving systems for automatic shut-off valves

3. BS EN 1652:1998 Copper and copper alloys - Plate, sheet, strip and circles for general purposes

4. BS EN 1654:1998 Copper and copper alloys - Strip for springs and connectors

5. BS EN 1655:1997 Copper and copper alloys - Declarations of conformit

6. BS EN 1665:1997 Hexagon bolts with flange - Heavy series

7. BS EN 1666:1998 Prevailing torque type hexagon nuts with flange (with non-metallic insert) with metric fine pitch thread

8. BS EN 1667:1998 Prevailing torque type all-metal hexagon nuts with flange with metric fine pitch thread

9. BS EN 1668:1997 Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels - Classification

10. BS EN 1670:2007 Building hardware - Corrosion resistance - Requirements and test methods