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prEN 1680
Plastics piping systems - Valves for polyethylene (PE) piping systems - Test method for leaktightness under and after bending applied to the operating mechanisms
prEN 1705
Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve after an external blow
prEN 1759-3
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 3: Copper alloy flanges
prEN 1759-4
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges
prEN 3043
Aerospace series - Fasteners, externally threaded, in heat resisting steel FE PA92HT (A286) - Classification: 900 MPa/650 °C, manufacturing method optional - Technical specification
prEN 3475-605 rev
Aerospace series - Cables, electrical, aircraft use - Test methods - Part 605: Wet short circuit test
prEN 12106
Plastics piping systems - Polyethylene (PE), crosslinked polyethylene (PE-X) and unplasticized polyamide (PA-U) pipes - Test method for the resistance to internal pressure after application of squeeze-off
prEN 13654-1 rev
Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method
prEN 13654-2 rev
Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method
prEN 13655
Plastics - Thermoplastic mulch films recoverable after use, for use in agriculture and horticulture
