Fluid systems and components

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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ISO/DIS 4021 - Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system
Categories: Fluid power systems
Committee: ISO/TC 131/SC 6 (Contamination control)
Origin: ISO
Close date: 14 May 2026
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prEN 14453 - Devices to prevent pollution by backflow of potable water - Pipe interrupter with permanent atmospheric vent DN 10 to DN 20 - Family D, type C
Categories: Valves
Committee: CEN/TC 164 (Water supply)
Origin: CEN
Close date: 21 May 2026
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