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Equipment and protective systems intended for use in potentially explosive atmospheres must comply with several regulations, standards and directives before they can be traded worldwide.

In the European Union, equipment must be certified according to the ATEX Directive 94/9/EC.

This ATEX Directive applies to new and used equipment, components, safety devices, controlling devices and regulating devices.

Access to markets in North America is also subject to appropriate approvals in accordance with equipment safety requirements (UL, NEC, IECex).

In the rest of the world, several countries use IEC Standards and European Standards as national standards.

SGS, supported by its experience and numerous laboratories, has established itself as a partner to assist a business with regard to safety of working locations, working equipment and technical installations.

SGS specialists can be contacted for advice on products and conformity procedures at anytime.

The company offers full support and specialist expertise on various fields for equipment in explosive areas.

SGS verifies the design of equipment to be used in explosive atmospheres and its safety components in accordance with the ATEX Directive and other design codes.

The service can also include explosion risk-related analysis, and assistance in the following areas: defining equipment groups and categories, verifying stress calculations, working drawings, equipment specifications and ability to be operated in accordance with intended use.

To ensure compliance with the regulations, SGS may propose adaptation and assessment of working equipment and locations.

SGS performs a series of testing and inspections against a specification, code, directive or industry standard.

The service may include design verification, inspection, non-destructive and destructive tests.

Statutory inspection applies after a complete or almost complete assembly/installation of the device and at regular intervals thereafter.

Inspections can also be carried out after conversion modification or modernisation of the equipment.

A typical inspection includes complete check of mechanical, structural, electrical and safety systems.

SGS provides independent witnessing of performance tests of equipment to guarantee that performance values are met.

The service may include verification of test reports for routine tests, witness test and a review of performance calculations.

Typical operations performed on the equipment include load testing and operational testing to reassure that the unit is functioning properly.

As the directive is not just applicable to electrical equipment, risk analysis should be carried out from a multidisciplinary viewpoint.

Risk assessment offered by SGS may include assistance in completing hazard analysis and analyses of the consequences involved with mechanical or electrical equipment and protective systems.

SGS SA – Industrial Services

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