Initiating events and independent protection layers
Article first published online: 24 SEP 2009
Copyright © 2009 American Institute of Chemical Engineers (AIChE)
Process Safety Progress
Volume 28, Issue 4, pages 374–378, December 2009
How to Cite
Murphy, J. F., Chastain, W. and Bridges, W. (2009), Initiating events and independent protection layers. Proc. Safety Prog., 28: 374–378. doi: 10.1002/prs.10356
- Issue published online: 5 NOV 2009
- Article first published online: 24 SEP 2009
- layers of protection;
- risk assessment;
- initiating events;
- independent protection layers
Layer of protection analysis (LOPA) is a semiquantitative tool for analyzing and assessing process risk. The tool has grown greatly in popularity and usefulness since the publication of the first CCPS/AIChE guidebook on the subject, Layer of Protection Analysis, Simplified Process Risk Assessment (LOPA). This article is a summary of a new CCPS guideline book that includes the following:
Initiating events (IEs).
Independent protection layers (IPLs).
Criteria for identifying the value of each prospective IE and prospective IPL.
Example IE and IPL data.
This book is a necessary reference for those applying the LOPA methodology. © 2009 American Institute of Chemical Engineers Process Saf Prog, 2009