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PR NF M88-738 ; PR NF EN 14071
LPG equipment and accessories - Pressure relief valves for LPG pressure vessels - Ancillary equipment
PR NF E29-200-1/A1 ; PR NF EN 1092-1/A1
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1 : steel flanges.
PR NF E51-718 ; PR NF EN 1751
Ventilation for buildings - Air terminal devices - Aerodynamic testing of dampers and valves
PR NF T54-930 ; PR NF EN 12100
Plastics piping systems - Polyethylene (PE) valves - Test method for resistance to bending between supports
PR NF E29-131/A1 ; PR NF EN ISO 17871/A1
Gas cylinders - Quick-release cylinder valves - Specification and type testing - Amendment 1
PR NF M88-729/A1 ; PR NF EN ISO 14245/A1
Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing - Amendment 1
PR NF M88-730/A1 ; PR NF EN ISO 15995/A1
Gas cylinders - Specifications and testing of LPG cylinder valves - Manually operated - Amendment 1
PR NF M87-238 ; PR NF EN ISO 14723
Petroleum and natural gas industries - Pipeline transportation systems - Subsea pipeline valves.
PR NF T54-065-4 ; PR NF EN 1555-4
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4 : valves.
PR NF E35-408/A1 ; PR NF EN ISO 21922/A1
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking - Amendment 1
