WA Layers of Protection Analysis (LOPA) & Safety Integrity Level (SIL)

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CSBP Kwinana Beach

Kwinana Beach Rd

Kwinana, WA 6167


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Event description


A Common Interest Work Group presented by SIRF Roundtables WA.

Attendance is free for people from member companies of SIRF Roundtables in WA.

Kindly hosted by CSBP Kwinana Beach:

CSBP and NIHAR Associates logo's

NIHAR Associates presenting!NIHAR Associates - CSBP logoLayer of Protection Analysis (LOPA) is a risk assessment and hazard evaluation method which provides a simplified balance between qualitative process hazard analysis (PHA) and detailed and costly quantitative risk analysis. The process starts with an identified accident scenario and then makes use of some simplifying rules that allow for the analysis of the initiating event frequency, along with the independent layers of protection. This results in an estimate of risk by order of magnitude.

Safety integrity level (SIL) is defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction. In simple terms, SIL is a measurement of performance required for a safety instrumented function (SIF).

LOPA pic

SIL pic

Join us, hear from experts in the field with question time, followed by a healthy open discussion on the topic.


8:30 am - Arrive and check in
9:00 am - Prompt start with safety information and introductions
9:20 am - Group defines expectations for the day
9:30 am - NIHAR Associates & CSBP presentations
Followed by group discussion / presentations
12:00 - 12:30 pm - Lunch (provided)
Continued discussion
3:00 pm - Wrap up & event feedback
3:15 pm - Event ends

Who Should Attend?

SIRF Common Interest Work Groups are for anyone interested in the topic of the day, and have the broadest attendance range of any of our events. Chances are good that if you’ve read this far, this event is for you!

About SIRF Rt Common Interest Work Groups

All SIRF Rt events are designed to provide a safe environment for open discussion with peers on the topic of interest they are working on, in and around. SIRF Rt Common Interest Work Groups (CWIG’s) provide the best forum for peer-to-peer learning and best practice sharing. Participants are asked to bring something for ‘show and tell’ about the topic of the day as it applies at their organisation – it could be a full presentation, a few photos, a brief descriptions of their current efforts, a couple of charts or graphs – anything that will help improve the discussion or other participants’ understanding of your workplace. After each company shares the deeper discussion follows, guided by our practiced facilitators.

SIRF Roundtables


What are my parking options for the event?

Parking availabe on site at CSBP

What are the PPE requirements?

Long pants, long sleeves, safety boots and hi-vis vest

When do I need to register by?

Registration typically closes three business days before the event for Common Interest Work Groups


This event is included in SIRF Roundtable membership

Who can I contact for further information?

Jeff Naylor 0409 535 239

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Date and Time


CSBP Kwinana Beach

Kwinana Beach Rd

Kwinana, WA 6167


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