1. BS EN 677:1998. Gas-fired central heating boilers - Specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW

2. BS EN 678:1994. Determination of the dry density of autoclaved aerated concrete

3. BS EN 679:2005. Determination of the compressive strength of autoclaved aerated concrete

4. BS EN 680:2005. Determination of the drying shrinkage of autoclaved aerate concrete

5. BS EN 681-1:1996. Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber

6. BS EN 681-2:2000. Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage applications - Part 2: Thermoplastic elastomers

7. BS EN 681-3:2000. Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage applications - Part 3: Cellular materials of vulcanized rubber

8. BS EN 681-4:2000. Elastomeric seals - Materials requirements for pipe joint seals used in water and drainage applications - Part 4: Cast polyurethane sealing elements

9. BS EN 682:2002. Elastomeric seals - Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids

10. BS EN 683-1:1996. Aluminum and aluminium alloys - Finstock - Part 1: Technical conditions for inspection and delivery