Fluid systems and components

ISO/DIS 10146 - Crosslinked polyethylene (PE-X) and crosslinked medium density polyethylene (PE-MDX) — Effect of time and temperature on expected strength
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: 12 Mar 2026
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ISO/DIS 15494.2 - Plastics piping systems for industrial applications — Polybutene (PB), polyethylene (PE), polyethylene of raised temperature resistance (PE-RT), crosslinked polyethylene (PE-X), polypropylene (PP) — Metric series for specifications for components and the system
Categories: Pipelines
Committee: ISO/TC 138/SC 3 (Plastics pipes and fittings for industrial applications)
Origin: ISO
Close date: 12 Mar 2026
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ISO/DIS 8434-2 - Metallic tube connections for fluid power and general use — Part 2: 37 degree flared connectors
Categories: Fluid power systems
Committee: ISO/TC 131/SC 4 (Connectors and similar products and components)
Origin: ISO
Close date: 16 Mar 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
Draft Details
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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
Draft Details
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ISO/DIS 24993 - Plastics — Rotational moulded polyethylene water storage tanks
Categories: Fluid storage devices
Committee: ISO/TC 61/SC 11 (Products)
Origin: ISO
Close date: 29 Apr 2026
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ISO/DIS 4433-1 - Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 1: Test method
Categories: Pipelines
Committee: ISO/TC 138/SC 3 (Plastics pipes and fittings for industrial applications)
Origin: ISO
Close date: 06 May 2026
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ISO/DIS 4433-2 - Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 2: Polyolefin piping components-polybutene (PB), polyethylene (PE), crosslinked polyethylene (PE-X), polypropylene (PP)
Categories: Pipelines
Committee: ISO/TC 138/SC 3 (Plastics pipes and fittings for industrial applications)
Origin: ISO
Close date: 06 May 2026
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ISO/DIS 4433-3 - Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 3: Unplasticized poly(vinyl chloride) (PVC-U), high-impact poly(vinylchloride) (PVC-HI), modified poly(vinylchloride) (PVC-M), alloy poly(vinylchloride) (PVC-A), oriented poly(vinylchloride) (PVC-O) and chlorinated poly(vinyl chloride) (PVC-C) piping components
Categories: Pipelines
Committee: ISO/TC 138/SC 3 (Plastics pipes and fittings for industrial applications)
Origin: ISO
Close date: 06 May 2026
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ISO/DIS 4433-4 - Thermoplastics piping systems — Preliminary evaluation of the resistance to chemicals — Part 4: Poly(vinylidene fluoride) (PVDF) and Ethylenechlorotrifluoroethylene (ECTFE) piping components
Categories: Pipelines
Committee: ISO/TC 138/SC 3 (Plastics pipes and fittings for industrial applications)
Origin: ISO
Close date: 06 May 2026
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