CDOIF
Chemical and Downstream Oil
Industries Forum
CDOIF is a collaborative venture formed to agree strategic areas for
joint industry / trade union / regulator action aimed at delivering
health, safety and environmental improvements with cross-sector
benefits.
Guideline – Demonstrating Prior Use v4
Page 28 of 30
Appendix D Other relevant publications
Further information relating to prior use can be found in the following publications
1) BS EN 61508, Functional Safety of Electrical/Electronic/Programmable Electronic Safety-
related Systems
2) BS EN 61511, Functional safety - Safety instrumented systems for the process industry
sector
3) Safety and Environmental Standards for Fuel Storage Sites, Process Safety Leadership
Group Final Report
4) ISA-TR84.00.04, Guidelines for the Implementation of IEC61511




