- by Dr. Eric Scharpf, CFSE
- Thursday, February 16, 2012
- Functional Safety
Babies, Bathwater, and Australian Safety Laws
The old saying goes, “Don’t throw the baby out with the bathwater.” But it looks like a number of people in Australia may be in danger of doing just that with their response to the country’s newly harmonized health and safety laws.
Australia’s new Read More...
- by Todd Stauffer
- Wednesday, May 22, 2013
- Alarm Management
How do You Compare?
Industry Benchmark Survey on Alarms as Safeguards and Independent Protection Layers (IPLs)
exida recently conducted an industry benchmark survey on the practices for the use of alarms as safeguards and IPLs. With over 200 safety practitioners from around the world providing responses, you can use the survey findings to…
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- by Hal Thomas, CFSE
- Tuesday, August 30, 2011
- Functional Safety
PHA to LOPA: Part II
In some cases the screening methods will indicate that a SIF is needed. These screening methods can be designed to determine how many orders of magnitude risk reduction is needed, allowing a required SIL to be documented for a particular SIF. The screening…
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- by Dr. Eric Scharpf, CFSE
- Thursday, April 26, 2012
- Functional Safety
The Safety Lifecycle as a Risk Control Loop
I have been doing a number of recent projects introducing the safety lifecycle to companies that are new to the field. As a result I have been playing with various ways to think about the overall safety lifecycle philosophy. As many of the more experienced readers are…
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- by Hal Thomas, CFSE
- Tuesday, May 24, 2011
- Functional Safety
When is a Variable Frequency Drive a SIS?
It used to be that a pump would operate at a single speed dictated by a motor, thus fixing the pump curve. As the discharge flow decreased due to a restriction downstream, the pump outlet pressure would increase reaching its deadhead pressure. If the downstream piping and vessels were…
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