Engineering

EN 50110-1:2023/prA1:2026 - Operation of electrical installations - Part 1: General requirements
Categories: Power transmission and distribution networks
Committee: CLC/BTTF 62-3 (Operation of electrical installations)
Origin: CENELEC
Close date: 10 Apr 2026
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ISO 12759-4:2019/DAmd 1 - Fans — Efficiency classification for fans — Part 4: Driven fans at maximum operating speed — Amendment 1: Addition of Annex F providing an example of the use of efficiency classification and editorial changes
Categories: Ventilators. Fans. Air-conditioners
Committee: ISO/TC 117 (Fans)
Origin: ISO
Close date: 13 Apr 2026
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ISO/DIS 8139 - Pneumatic fluid power — Cylinders, 1 000 kPa (10 bar) series — Mounting dimensions of rod-end spherical eyes
Categories: Fluid power systems
Committee: ISO/TC 131/SC 3 (Cylinders)
Origin: ISO
Close date: 13 Apr 2026
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EN ISO 12759-4:2019/prA1 - Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed - Amendment 1: Addition of Annex F providing an example of the use of efficiency classification and editorial changes (ISO 12759-4:2019/DAM 1:2026)
Categories: Ventilators. Fans. Air-conditioners
Committee: CEN/TC 156 (Ventilation for buildings)
Origin: CEN
Close date: 13 Apr 2026
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ISO/DIS 19251-1 - Thermoplastic pipes for the conveyance of fluid — Hydroaxial tension (HAT) method — Part 1: Determination of the longitudinal tensile strength of pipe or pipe/pipe or pipe/fitting assemblies
Categories: Pipelines
Committee: ISO/TC 138/SC 5 (General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications)
Origin: ISO
Close date: 14 Apr 2026
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ISO/DIS 19251-2 - Thermoplastic pipes for the conveyance of fluid — Hydroaxial tension (HAT) method — Part 2: Determination of the resistance of pipe/pipe or pipe/fitting or fitting/fitting assemblies to longitudinal stress rupture
Categories: Pipelines
Committee: ISO/TC 138/SC 5 (General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications)
Origin: ISO
Close date: 14 Apr 2026
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ISO 12759-3:2019/DAmd 1 - Fans — Efficiency classification for fans — Part 3: Fans without drives at maximum operating speed — Amendment 1
Categories: Ventilators. Fans. Air-conditioners
Committee: ISO/TC 117 (Fans)
Origin: ISO
Close date: 15 Apr 2026
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prEN 3988 - Aerospace series - Test methods for metallic materials - Constant amplitude strain-controlled low cycle fatigue testing
Categories: Aerospace construction materials
Committee: ASD-STAN (Aerospace)
Origin: CEN
Close date: 16 Apr 2026
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ISO/DIS 4548-15 - Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 15: Vibration fatigue test for composite filter housings
Categories: Internal combustion engines
Committee: ISO/TC 70 (Internal combustion engines)
Origin: ISO
Close date: 17 Apr 2026
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prEN 15189 - Ductile iron pipes, fittings and accessories - External polyurethane coating for pipes - Requirements and test methods
Categories: Surface treatment and coating
Committee: CEN/TC 203 (Cast iron pipes, fittings and their joints)
Origin: CEN
Close date: 23 Apr 2026
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ISO/DIS 4302 - Cranes — Wind load assessment
Categories: Lifting equipment
Committee: ISO/TC 96/SC 10 (Design principles and requirements)
Origin: ISO
Close date: 24 Apr 2026
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