Hazardous Area Classification

The Abhisam HAZARDOUS AREA CLASSIFICATION e-learning   course with certification helps you learn all about classifying hazardous areas including Area Classification, Material & Temperature classification.

What's the problem?

Hazardous Areas are found everywhere.

These areas (also known as "Classified Locations") are those parts of a plant or facility where the risk of an explosion or fire is higher than normal, due to the  kind of material stored, handled or processed in that area. This includes commonly known places such as  gasoline storage tank farms and terminals, oil refineries, gas processing plants, chemical plants, warehouses that store hazardous chemicals and even plants that process large amounts of dusty materials such as sugar, grains and so on.

What's the root cause of Hazardous Area related accidents?

If the engineering, operations and management of these areas does not follow well laid out principles of hazardous areas, then one could have an accident. In the recent past, there have been many such accidents, the root cause of which is a poor understanding of hazardous area classification.

The US Chemical Safety Board lists improper training as one of the major causes of hazardous area related accidents. Many of these unwanted incidents occur because of a poor understanding of the risks that these areas pose. It is only relatively recently that this has become a focus area of the authorities in many parts of the world, not just in North America. For example the European Union introduced their ATEX legislation to deal with the problems of hazardous area accidents.

For example, an incident that happened in an Ink Manufacturing unit in Danvers, Massachusetts, a few years back, flattened a large community of houses, miles away. The investigation showed a poor knowledge of hazardous areas among the operators. You can see an aerial view of the plant surroundings after the event.

Since then, there have been many such accidents that have occurred including the infamous Imperial Sugar plant explosion (see picture below) that occurred in Georgia.

Most laypersons and even technical personnel like engineers and technicians have no idea that seemingly innocuous materials such as sugar, can cause explosions of this magnitude! Many of them understand that materials like petroleum or kerosene or gases such as Hydrogen or Methane can be flammable or explosive, but they have no idea that similar devastation can be caused by materials such as sawdust or aluminum dust! 

Can I not learn everything about on the internet for free?

Sure you can, but it will take you a hell of a lot of time (and time is money) for searching for useful nuggets of information from here and there, watching some You Tube videos, hanging around some LinkedIn groups and so on to get it. While you may spend days of your precious time searching for information from these sources and you can get lots of information this way, a few questions will always remain. Some of these may be the following

* Is this information authentic? Or is it an opinion of some anonymous LinkedIn user?

*Is this information current?

*Where can I see actual examples of area classification drawings?

*Which standards to follow?

*What is the underlying logic of this classification?

*Should I mark everything under the highest possible classification (Division 1 everywhere)? Or no?

and so on......

So what do I do?

How to prevent such accidents from happening? The only way is to become knowledgeable about hazardous areas and their classification and ways to improve the existing classification by certain techniques that make the area safer. How do you do it without spending a boatload of cash on expensive books, poring through fat standards that are written in a not so easy manner, or spending hours surfing the internet for scraps of information or hanging around in Linked In groups asking peers about this (who themselves may not have knowledge about this niche subject)?


Get this Hazardous Area Classification training course now.

Learn everything you need to know about hazardous area classification via these  SIX Modules in ONE SINGLE COURSE followed by a Self Assessment Test

Module 1- Basic Concepts about Hazardous Areas

Module 2- Properties of Materials

Module 3 - Standards for Hazardous Areas (covers IEC and NFPA)

Module 4 - Carrying out a Hazardous Area Classification

Module 5 - Practical Case Study

Module 6 - Myths about Area Classification

 Self Assessment Test

These modules consist of text, animations & simulations, practical plant photos and drawings, calculation examples, overview of the standards and self assessment exercises that will make you an expert in this subject.

So what do these modules actually contain? These are the individual module contents

What does this e-learning course contain?

This software based online training course has the following modules, which contain text, animations & simulations, real life examples, videos, graphical information that is very easy to grasp and a case study that includes actual plant hazardous area classification drawings from real projects. It also includes Self Assessment questions that help you learn better about the topics and also act as a mock test to prepare for the certification exam.

Here you can see a brief outline of what every module contains.

The course length can be considered to be 12 hours and you can get 12 Professional Development Hours (PDH credits) if you complete it.

Module 1 – Basic Concepts
·         Introduction to Hazardous areas
·         Types of Hazardous Areas
·         History of Hazardous Areas
·         Hazardous Areas around the world
·         Hazardous Atmosphere
·         Hazardous Area Designation
·         Types of Classification
·         Combustible Dusts
·         Why classify hazardous areas
·         Basic concepts of Fires & Explosions
·         Fire Triangle
·         Sources of Ignition
·         Controlling Ignition Sources
·         Explosions - What is an explosion?
·         Basic Concepts - What is a hazard?
·         What is Risk?
·         Avoiding Risk?
·         Reducing Risk
·         Benefits of Classification
·         How does Area Classification work?
·         How can area classification help us reducing costs?
·         Module 1 End
Module 2 - Properties of Hazardous Materials
·         Introduction
·         Properties of Hazardous materials-1
·         LEL & UEL
·         Properties of Hazardous materials-2
·         Combustible Dusts
·         Dust Pentagon
·         Ignition of Explosive Atmosphere
·         Ignition Energy
·         Flash Point & Fire Point
·         Autoignition Temperature
·         Combustible Dust Video
·         Summary
Module 3 - Area Classification Standards
·         Introduction
·         Fundamental Ideas about Area Classification
·         Purpose of classification
·         Threshold for classification
·         Probabilities of release
·         Hot Spots- temperature classification
·         Standards for classification
·         European system / IEC system
·         Zones for Gases & Vapors
·         IEC Groups
·         NFPA
·         NFPA Classes
·         Divisions
·         IEC Dust Classification
·         NFPA Dust Classification
·         NFPA Fibers & Flyings
·         Material Classification-IEC
·         Material Classification-NFPA
·         Material Classification-NFPA
·         Material Classification- Comparison
·         Temperature Classification-IEC
·         Example  of Temperature Classification Example
·         Classification Example
·         Example  of Temperature Classification
·         ATEX System
·         ATEX Marking System
·         IEC Ex -Unification of the two systems
·        Summary
Module 4 - How to carry out Area Classification
·         Introduction
·         Sources of Release
·         Factors affecting release rate
·         Grades
·         Grades and Zones
·         Step by Step Guide to an Area Classification- Step 1
·         Step 2
·         Step 3
·         Step 4
·         Step 5
·         Step 6-Initial Hazard Radius
·         Step 7 -Ventilation
·         Natural and Artificial Ventilation
·         Degree of Ventilation-1
·         Step 8- Ventilation Calculations
·         Extent Calculations
·         Volume Calculations
·         Ventilation & Zones
·         Example Calculation
·         Step 8
·         Further Improvements
·         Case Study-1
·         Q1
·         Q2
·         Case Study Learnings
·         Summary
Module 5 - Practical Case Study
·         Introduction
·         Video
·         Area Classification begins
·         Area Classification Steps
·         Sources of Release & Extent
·         Drawing-1
·         Drawing-2
·         Final Installation
·         Consequences of poor area classification
·         Solution
·        Thank you
Module 6 – Myths about Area Classification
·         Introduction
·         Myth 1
·         Myth 1 Example
·         Storage Tank example
·         Myth 2
·         Myth 3
·         Myth 4
·         Myth 4 Example
·         Myth 5
·         Summary
Self Assessment Test


The Training Course has several animations and simulations that make understanding concepts about hazardous areas, very easy. Here's a sample animation from the course. Note that the actual animations in the course will be better.


The included self assessment test enables you to understand your own level of knowledge about the topic and helps in preparing for the Certification exam.

Here's a sample question from the test.HazardousAreaClassificationQuestion



Get real world experience of seeing drawings that hav been actually used in area classification projects. The Case Study covers an actual project and these drawings are from that project. The course will have the unblurred drawings.




Easily understand how the extent of Hazardous Areas can be determined via calculations.  Note that this is one of the steps that has been illustrated and not the final step of determining the extent.

Hazardous Area Classification example


You get an opportunity at no extra cost to earn a Certificate of Competency in Hazardous Area Classification after passing the associated exam. You can also earn a badge via Credly, that you can display online at places such as LinkedIn to give your skills better visibility.

Choose from any of the Versions Below

For Individuals

Online $ 399 US
For Individuals
Course Duration: 12 hours (Approx 1 & 1/2 days of self paced learning)
Get 12 PDH (Professional Development Hours)
Includes Online Exam and Certification for 1 learner
Certificate Validity: Lifelong
Unlimited Online Access to the course for 1 Year
Course access renewal (if required) at discount
All modules
View with any device with a standard browser (PC/Laptop/Tablet/Mobile)
Standard $ 499 US
For Individuals
Course Duration: 12 hours (Approx 1 & 1/2 days of self paced learning)
Get 12 PDH (Professional Development Hours)
Includes Online Exam and Certification for 1 learner
Certificate Validity: Lifelong
Download the Course to your own PC OR access online. Unlimited access to the course for 3 years
Course access renewal (if required) at discount
All modules
View with any PC/laptop with Windows OS (7,8,10). Single PC license
Included in Gold Membership
For Individuals
Gold Membership : First Month $399 US and then $149 US Per Month only
Access to All Abhisam Courses (Online Versions) 24/7 for Gold Members
More Courses are being added every month
Cancel Subscription Anytime
Get One Free Certification Exam Per Month ( Certificate Validity : Lifelong)
Additional Certification Exams can be purchased at discounted price
All modules
View with any device with a standard browser (PC/Laptop/Tablet/Mobile)

By clicking 'BUY NOW', you will continue to the FastSpring checkout page where payment will be taken, and your order fulfilled by FastSpring, our trusted reseller, and Merchant of Record.


Please contact us via the form below.