Our Stories

A collection of our Blogs, Articles, and Whitepapers

Improving Human Factors Review in PHA and LOPA

Having a working knowledge of these five tools will improve a PHA‐LOPA facilitator’s awareness and ability to better evaluate human error re

Improving the Safety Instrumented System (SIS) Design Process with Graphic Diagrams

Examples of the different types of graphic diagrams, methods in which the diagrams were utilized, and the benefits that each provided in th

FGS 1400 MK II - Evolution of the traditional Fire panel

To develop the Fire and Gas system requirements needed by industry, we first needed to understand the regulatory requirements, applicable in

Lessons Learned on SIL Verification and SIS Conceptual Design

by Richard E. Hanner & Ravneet Singh There are many critical activities and decisions that take place prior to and during the Safety...

Methodologies in Reducing Systematic Failures of Wired IPLs

Common sources of systematic failures and preventative or mitigative measures to prevent their occurrence are presented.

Reverend Bayes, Meet Process Safety-Use Bayes’ Theorem to Establish Site Specific Confidence in LOPA

Bayes’ Theorem is sorely missing from the toolbox of Process Safety practitioners. This paper will introduce Bayes’ Theorem to the reader an

SIL ratings and certification for fire & gas system hardware | Is industry barking up the wrong tree?

There are many devices (sensors, logic solvers and final elements) used in safety instrumented systems that are independently certified...

The use of Bayesian Networks in Functional Safety - Whitepaper

Functional safety engineers follow the ISA/IEC 61511 standard and perform calculations based on random hardware failures. These result in...

Burner Management System Safety Integrity Level Selection

by Michael D. Scott, P.E., aeSolutions Founder This paper will discuss how quantitative methods can be utilized to select the appropriate...

Identifying Required Safety Instrumented Functions for HIGH-TECH & SEMICONDUCTOR MANUFACTURING

This paper will discuss the issues, decisions, and challenges encountered when attempting to initially apply the concepts of the Safety Life