This European Standard applies to the connection between a gas cylinder value and a gas cylinder for respiratory protective devices. It specifies the dimensions and tolerances for thread connections to be used for respiratory protective devices and contains requirements for impact resistance for the connection between a gas cylinder and a gas cylinder valve.
EN 144-1:2000 history
2018EN 144-1:2018 Respiratory protective devices - Gas cylinder valves - Part 1: Inlet connections
2000EN 144-1:2000 Respiratory protective devices - Gas cylinder valves - Part 1: Thread connections for insert connector
1991EN 144-1:1991 Respiratory Protective Devices - Gas Cylinder Valves - Thread Connection for Insert Connector