ATEX Product Certification


Since July 2003, Ex products that are placed on the European market must be certified to the ATEX directive (ATEX 94/9/EC). This involves the testing and assessment of such products to the latest ATEX standards.
The Objective of Directive 94/9/EC
The objective of ATEX is to ensure the free movement of goods throughout the European Union, by offering one harmonised compliance procedure accepted by all EU countries, eradicating the need for differing national standards.

This so called New Approach directive removes barriers to trade by defining Essential Health and Safety Requirements (EHSRs) for Ex equipment. The EHSRs form the basis of an EU-accepted product conformity approval process that examines the potential ignition sources of equipment intended for use in potentially explosive atmospheres.
ATEX Product Certification
ATEX product certification (or EC Type Examination) is the check on the design specification of a product in relation to a series of relevant standards laid out under the directive.
It involves a detailed process of examination, testing and assessment of equipment intended for use in potentially hazardous areas, with the end result being the issue of an ATEX certificate and report, confirming and demonstrating that the product is safe to use (within certain parameters) within potentially explosive atmospheres.
The certification process must be undertaken by a Notified Body who issue ATEX certificates and conduct periodic surveillance of quality management systems. (Certain exclusions apply, such as equipment intended for use in zone 2 environments, and category 2 & 3 non-electrical equipment).

CQST has unparalleled expertise in explosion safety equipment. We have highly experienced engineers that are recognised experts in the following fields:

Flameproof (Ex d)

Encapsulated (Ex m)

Intrinsic Safety (Ex ia)

Powder Filled

Increased Safety (Ex e)

Protective Systems

Purged & Pressurised (Ex p)

Non-electrical Equipment

Oil Immersed (Ex o)

Unit Verification

Type n (Ex n)


For more information about some of the most popular methods of protection, please contact us.
Types of Equipment
CQST has a wealth of knowledge with product certification, and has certified a vast range of equipment, including:

Junction Boxes & Enclosures

Fuel Dispensers

Gas Detectors

Control Equipment

Motors & Engines

Lamps and Luminaires

Generators & Transformers

Measuring, Monitoring & Analysing Equipment

Terminals and P.C.Bs

Spray Guns

Flame & Spark Arrestors


Mining Applications


Safety Barriers


Computers & Peripheral Equipment

Cameras & Visual Monitoring

Power Supply Units

Solenoid Valves and Coils

Cable Attachments


Heaters & Heating Tape


Computer Peripherals


The CQST Service

We can take your product, and, using the expertise of our certification engineers, coupled with your own expert knowledge of your product, enable you to declare ATEX compliance by successful certification of your Ex equipment.

To learn more about the route to certification, please contact us:+86 0377 63258564 +86 0377 63259357

To obtain a formal quotation for ATEX approvals, please fill in the relevant sections of our product certification request for quotation form, a copy of which can be downloaded in Downloads & Further Ex Information