GB/T 20438.6-2017

This standard provides application guidelines for implementing the technical requirements of GB/T 20438.2 (hardware) and GB/T 20438.3 (software) in the design and development of electrical, electronic, and programmable electronic safety-related systems. It is applied in manufacturing industries, particularly for machinery and industrial automation systems, to help engineers and procurement professionals select appropriate safety integrity levels and verify system compliance. The standard is used during system design, risk assessment, and validation testing to ensure functional safety in products like industrial robots, process controllers, and safety instrumented systems.