Hazardous Area Classification

Define the boundaries of safety in your facility. We provide expert Hazardous Area Classification (HAC) services to accurately identify and classify areas where explosive atmospheres may occur.

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The Foundation of Explosion Safety Design

Hazardous Area Classification (HAC), or zone classification, is the foundational step in designing a safe facility. This systematic process analyzes where flammable gases, vapors, or dusts may be present to define specific zones (e.g., Zone 0, 1, 2). The outcome of the HAC dictates all subsequent safety decisions, especially the selection of appropriate Ex equipment.

Our Classification Process (IEC 60079-10)

Following international standards like IEC 60079-10-1 (for gas) and 60079-10-2 (for dust), our experts conduct a thorough analysis. We assess the properties of flammable substances, identify potential release sources, consider ventilation effectiveness, and then calculate the extent of each hazardous zone. The results are documented with clear, easy-to-read zone drawings.

A Prerequisite for Compliance and Design

A completed HAC is not an endpoint; it’s a critical input for many other safety processes. It is a mandatory component of your Explosion Protection Document (EPD), guides the selection of all electrical and mechanical equipment, and informs the requirements for your inspection and maintenance programs. Getting the classification right is essential for both safety and cost-effectiveness.

What You Gain with Our HAC Services:

Full compliance with international standards (IEC 60079-10)
A clear and accurate definition of all hazardous zones
The correct basis for selecting appropriately rated Ex equipment
Prevention of over-engineering and unnecessary costs
Essential input for your Explosion Protection Document (EPD)
Clear, professional zone drawings for your facility
Demonstrable risk assessment for regulatory bodies
Enhanced understanding of the specific risks within your plant

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Ilija RebicQA/QC manager, Worley Nederland B.V.
“We recently engaged Quasar Engineering for an initial ATEX inspection and to resolve a series of ATEX compliance issues within our engineering systems. From start to finish, their team demonstrated exceptional technical knowledge, professionalism, and a clear understanding of hazardous area compliance requirements.”

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Piet KoenraadsProject manager
“Quasar engineering was involved as main consultants and inspectors for all ATEX related matters for the Avantium FDCA plant. As such they advised us and executed the works professionally. The results were very satisfactory. We would certainly recommend using them for any other or future project.”

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Francisco VendeiroConstruction Manager - Electrical & Instrumentation (& QC Lead)
“Quasar Engineering is a trusted partner delivering high-quality, cost-effective engineering and consulting services. They are a reliable and efficient engineering partner and a strong client partnership model makes them a valuable consideration for companies seeking engineering and consulting services in these industries.”