1. BS EN 62541-13:2015. OPC unified architecture - Part 13: Aggregates

2. BS EN 62541-3:2015. OPC unified architecture - Part 3: Address Space Model

3. BS EN 62541-4:2015. OPC unified architecture - Part 4: Services

4. BS EN 62541-5:2015. OPC unified architecture - Part 5: Information Model

5. BS EN 62541-6:2015. OPC unified architecture - Part 6: Mappings

6. BS EN 62541-7:2015. OPC unified architecture - Part 7: Profiles

7. BS EN 62541-8:2015. OPC unified architecture - Part 8: Data Access

8. BS EN 62541-9:2015. OPC unified architecture - Part 9: Alarms and conditions

9. BS EN 62542:2013. Environmental standardization for electrical and electronic products and systems - Glossary of terms

10. BS EN 62549:2011. Articulated systems and flexible systems for cable guiding