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Electrical resistance trace heating - IEC TC31 document to help determine the future course of IEC 60079-30-1 and -2

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Information technology for learning, education and training - Online course information model

Maintenance of electrically controlled hold-open systems for fire and smoke door assemblies as well as for electrically controlled hold-open systems for fire barriers in the course of ground-bound conveying systems - Part 1: Maintenance measures

Maintenance of electrically controlled hold-open systems for fire and smoke door assemblies as well as for electrically controlled hold-open systems for fire barriers in the course of ground-bound conveying systems - Part 2: Minimum qualification and proof of competence of maintenance personnel

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