Two-Day Risk Analysis Screening Tool (RAST) Workshop | AIChE

Registration Information:

Member Rate: $1,000

Non-member Rate: $1,250

Register Now!

Join this in-person course March 11 - 12, 2023 before the 2023 AIChE Spring Meeting and 19th Global Congress on Process Safety (GCPS) in Houston, Texas. This course will introduce RAST to users who participate in process hazards and risk evaluations. Process safety personnel can perform a Hazard Identification and Risk Analysis (HIRA) using real-time evaluations during incident scenario discussions.

Note: You can also add this course as a ticketed event to your 2023 AIChE Spring Meeting & 19th GCPS registration, or call our customer service at  800.242.4363 to register

RAST Course Description:

The Risk Analysis Screening Tool (RAST) is designed for those performing a Hazard Identification and Risk Analysis (HIRA) on incident scenarios, an essential assessment method used by Process Hazards Analysis (PHA) Teams. RAST screens for the proposed incident scenarios that may exhibit unacceptable process safety risks. It uses quality-checked, simple, and quickly-solved linear relationships that closely correlate to complex algorithms of many commercially available analysis tools. The outcome of a RAST screening analysis will help PHA Teams focus on the scenarios that need mitigative engineering or administrative controls to protect people, the environment, assets, and the business.

This course will enable users to become familiar with the RAST tool—how it works, what data are needed, what simplifying assumptions have been made, and what the results can look like. It covers the basic steps in a HIRA and includes the ability to address the reliability of the controls through the Layer of Protection Analysis (LOPA). Throughout the course, example problems are provided so that users understand the limitations of this tool, when to engage a Subject Matter Expert, and when to use more advanced methods.

The RAST and the basic RAST Manual are available at no charge from the CCPS (RAST Home Page). All attendees will be expected to download and install the latest versions of RAST (Version 4.1) and the RAST Manual (Version 4.2) prior to the workshop.  

RAST Course Outline

Day 1:

1 – Introduction

  • What is RAST
  • Work and information flow within RAST

2 – Getting Started

  • Opening the tool
  • Example case study
  • Data input
  • Reports

3 – Chemical Data

  • Data used
  • Adding a new chemical
  • Create a chemical mixture

4 – Reactivity Data and Evaluation

  • Reactivity screening
  • Data input
  • Reactivity evaluation
  • Example input and evaluation
  • Process upsets

5 – Additional Input and Reports

  • List of reports
  • Additional inputs needed

Day 2

6 – Scenario Development

  • Definition
  • Loss of containment (LOC) events
  • Scenario creation in RAST
  • Initiating events
  • Incident types and outcomes
  • Screening criteria
  • Scenario library
  • User-defined scenarios

7 – Risk Analysis and LOPA

  • Definitions (LOPA & Risk)
  • Consequence modeling
  • Likelihood/Frequency
  • Risk Matrix
  • Selecting scenarios for analysis
  • LOPA

8 – Case Study

  • Class exercise

9 – Summary

  • Review