IEC/SC 31J - Classification of hazardous areas and installation requirements
To prepare and maintain international standards relating to the use of equipment including area classification, the selection and installation, inspection and maintenance, repair, overhaul and reclamation of equipment where there is a hazard due to the possible presence of explosive atmospheres of gases, vapours, mists or combustible dusts.
Classification des emplacements dangereux et règles d'installation
Préparer des normes internationales pour: - la classification des emplacements dangereux et, - la sélection, l'installation et l'utilisation des matériels électriques pour atmosphères explosives gazeuses (Le mot "utilisation" recouvre l'inspection, la maintenance, la réparation, la révision et la modification)
General Information
Frequently Asked Questions
IEC/SC 31J is a Subcommittee within the International Organization for Standardization (ISO). It is named "Classification of hazardous areas and installation requirements" and is responsible for: To prepare and maintain international standards relating to the use of equipment including area classification, the selection and installation, inspection and maintenance, repair, overhaul and reclamation of equipment where there is a hazard due to the possible presence of explosive atmospheres of gases, vapours, mists or combustible dusts. This committee has published 22 standards.
IEC/SC 31J develops ISO standards in the area of Information technology. The scope of work includes: To prepare and maintain international standards relating to the use of equipment including area classification, the selection and installation, inspection and maintenance, repair, overhaul and reclamation of equipment where there is a hazard due to the possible presence of explosive atmospheres of gases, vapours, mists or combustible dusts. Currently, there are 22 published standards from this subcommittee.
The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. Founded in 1947 and headquartered in Geneva, Switzerland, ISO brings together experts from 170+ member countries to share knowledge and develop voluntary, consensus-based standards that support innovation and provide solutions to global challenges.
A Subcommittee (SC) in ISO operates under a Technical Committee and focuses on a specific subset of the TC's scope. Subcommittees develop standards and technical specifications in their specialized area, reporting to their parent Technical Committee. They may also have working groups for detailed technical work.





