ATEX Audit

ATEX Audit
Donat Czapski

Donat Czapski – I am at your disposal

+48 695 244 220


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The quickest and cheapest way to verify that your workplace complies with the ATEX Directive

The ATEX Audit is the cheapest and quickest method of assessing the critical points in an the plant that should be addressed first. The audit report will therefore allow you to focus on the tasks that will most powerfully and often most quickly reduce the risk of explosion and fire in your facility. Such an approach not only makes it possible to prioritise actions, but also to schedule them over time, which is important, especially in the case of costly modifications.

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The audit is most often offered to companies that come to us with a request for an Explosion Prevention Document. This is because our experience shows that up to 80% of production sites do not meet the minimum requirements of the ATEX directive, which would have to be demonstrated in an official document such as the EPD. Importantly, this document is signed by the management/owner, thereby declaring the plant safe in terms of explosion safety.

The development of an EPD for a company is mandatory, but creating one when the facility does not meet the minimum requirements contradicts its concept which is to prove that the workplace complies with the requirements of the ATEX Directive. That is why, in the first instance, we propose to carry out an ATEX AUDIT, which will show us where we are and allow us to develop a corrective action schedule tailored to your capabilities. This schedule will emphasise the tasks that will most strongly improve safety. Importantly, you can fulfil the provisions of the schedule with both us and a third party.

What an ATEX AUDIT verifies


We will point out substances that pose an explosion risk. 

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In the audit, we indicate which substances may pose an explosion hazard and present their explosion-related parameters based on our databases with parameters of several thousand dusts. This data will be used for preliminary determination of the hazard level and in preparation of a safety concept. For the purpose of EPD preparation and for the final selection of protective measures, we recommend tests of the actual dusts present in the plant.


We will verify the safeguards in place.

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ATEX Directive makes explosion protection mandatory. We will verify that your equipment meets the minimum requirements of the aforementioned directive and the relevant harmonised standards. We will tell you what action you need to take to operate safely and legally. At your request, we will also prepare an explosion protection concept for the equipment.


We will check that you have the necessary procedures in place.

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Implementing the right procedures is often the cheapest way to improve explosion safety. We will check the procedures you currently have in place and identify which are missing.


We will indicate which documents are missing.

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We will check that your equipment is certified and that you have the documents required by law.

Case Study

ATEX Audit

Find out how the ATEX AUDIT helped our client

That is, how the critical points of the installation were determined, and the client avoided uninformative feedback in the EPD such as “no data”, “no documentation”, or “parameters not specified”.

ATEX AUDIT milestones

ATEX Audit


An in-depth discussion with the customer’s nominated coordinator or with the team that has the best knowledge of the plant being analysed, the solutions used and the technology. In our experience, these are most often the maintenance manager, the person responsible for health and safety and the process engineer.

ATEX Audit


During the site visit, the auditor reviews the main areas of the plant highlighting those items of equipment that are critical to explosion safety. During the visit, photographic documentation is taken and will be included in the report along with a description of the errors.

ATEX Audit


Our support does not end with the issuing of the report. During the debriefing meeting, we discuss the most important aspects of the report including key gaps and recommendations. The meeting may also include a consultation, during which our expert will answer your questions and address your concerns. Importantly, the meeting can take place online or live at your convenience.

Potential post-audit steps

An audit may reveal unacceptable deficiencies that will bring the workplace into non-compliance with legal requirements or affect the terms of your company’s insurance policy. If this is the case, we can support you by implementing the steps below.

ATEX Audit


The explosion protection concept will present various options for the explosion protection of the process equipment. In this way, you will learn the advantages and limitations of each solution, allowing you to choose the one that best meets your needs. NOTE: the concept only includes solutions that comply with the legislation.

ATEX Audit


You can carry out the explosion protection variant of the plant selected on the basis of the concept with either us or a third party. If you choose to work with us, we will guarantee that the solution adopted complies with both, legal requirements and applicable standards.

ATEX Audit


Once the recommendations of the ATEX AUDIT have been implemented, we can develop an Explosion Prevention Document that demonstrates that the level of explosion risk in your facility is acceptable and can safely carry out production. Importantly, the cost of the audit is deducted from the price of developing the EPD, which means that you do not incur the cost of the audit.

Purpose of the audit

The purpose of the ATEX AUDIT is to assess the current level of protection of the plant against the possibility of an explosion and its consequences, so that a decision can be made as to whether additional measures are required or whether the risk of an explosion is at a level acceptable to the plant management. If the risk mentioned is too high then, based on the assessment, it can be determined what measures to reduce the level of explosion risk will be most beneficial in technical and financial terms.

What the audit report contains

  1. Assessment of whether the audited area meets the requirements of the ATEX Directive
  2. List of deficiencies in documentation, procedures and safeguards
  3. Photographic documentation with evaluation of selected equipment and areas
  4. List of actions that will have the greatest impact on improving explosion and fire safety
  5. Recommended technical (safeguards) and organisational (procedures) measures to improve safety and bring the area into compliance with the law
  6. Guidelines for prioritising the implementation of individual recommendations


You will pay nothing for an ATEX AUDIT

If you are just considering developing an EPD or ERA then remember that by having an ATEX AUDIT beforehand you are not risking anything. This is because the cost of the audit is deducted from the price of the possible development of the EPD. It is just possible, because after the audit it is up to you whether you want to take the next step with us. While it is true that it is the responsibility of the employer to ensure a minimum level of explosion safety, and this includes the development of an EPD, there are times when, after an audit, a company comes to the conclusion that it is not ready to proceed at that point.

Less than 20% of companies have the data available to develop an EPD

To date, we have produced several hundred explosion risk assessments and explosion protection documents. We have worked with plants from all major industries, from food, chemicals, pharmaceuticals to timber and energy. Fewer than 20% of these establishments had all the inputs that would have enabled them to prepare a document that was complete and unambiguous in its conclusions. Says Mariusz Balicki, responsible for the Technical Analysis and Training Department at WOLFF GROUP.


Therefore, when we are approached by a company wishing to develop an Explosion Risk Assessment or Explosion Prevention Document, we first assess the availability of key inputs. If the deficiencies are too great, we suggest an ATEX AUDIT as a first step, which will show these deficiencies as well as other potential deficiencies in the area of explosion safety.

During the audit, we verify key areas of explosion safety including, but not limited to, documentation and parameters of explosive substances.

Scope of our activities

ATEX AUDITS carried out by WOLFF GROUP Engineers specifically include:

  • Existing process plants
  • Newly built process plants (project audit)
  • Upgraded process plants (post-retrofit audit)

Model approach to explosive safety in an industrial plant

Model approach to explosive safety in an industrial plant

Step 1
ATEX Audit

During the ATEX Audit, we will focus on deficiencies in explosive safety and indicate tasks that should be performed first to have the strongest impact on safety improvement.

Model approach to explosive safety in an industrial plant

Step 2
Protection Concept

The result of the ATEX Audit is also a preliminary concept of protecting the installation from explosion. It allows estimating the costs of protections. After testing the explosiveness parameters of the dust from the installation, we move on to the final concept and design.

Model approach to explosive safety in an industrial plant

Step 3
Design and selection of protections

After accepting the concept and testing the explosiveness parameters of the dust from the installation, we proceed to the final selection of explosion protections and create a design that takes into account all required changes in production.

Model approach to explosive safety in an industrial plant

Step 4
“Turnkey” delivery and installation

We coordinate the entire delivery and installation process of protections. We have our own service teams with experience in performing installation without the need to stop the investor’s plant operation.

Model approach to explosive safety in an industrial plant

Step 5
Execution of ERA and EPD

We conduct a post-implementation Explosion Risk Assessment (ERA) and prepare (or update) the Explosion Protection Document (EPD). We usually also conduct training for the crew in the field of explosive safety.

Secure your industrial plant

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