1. BS 7121-2-4:2013. Code of practice for the safe use of cranes Part 2-4: Inspection, maintenance and thorough examination – Loader cranes

2. BS 7121-2-5:2012. Code of practice for the safe use of cranes Part 2-5: Inspection, maintenance and thorough examination – Tower cranes

3. BS 7121-2-7:2012 + A1:2015. Code of practice for the safe use of cranes Part 2-7: Inspection, maintenance and thorough examination

4. BS 7121-2-9:2013. Code of practice for the safe use of cranes Part 2-9: Inspection, maintenance and thorough examination – Cargo handling and container cranes

5. BS 7121-3:2000. Code of practice for safe use of cranes - Part 3: Mobile cranes

6. BS 7121-4:2010. Code of practice for safe use of cranes – Part 4: Lorry loaders

7. BS 7121-5:2006. Code of practice for safe use of cranes – Part 5: Tower cranes

8. BS 7123:1989. Specification for Metal arc welding of steel for concrete reinforcement)

9. BS 7135-2:1989 ISO 9295:1988. Noise emitted by computer and business equipment - Part 2: Method of measurement of high-frequency noise

10. BS 7135-3:1989 ISO 9296:1988. Noise emitted by computer and business equipment - Part 3: Method for determining and verifying declared noise emission values