EN 144-3-2003 pdf download.Respiratory protective devices – Gas cylinder valves – Part 3:Outlet connections for diving gases Nitrox and oxygen.
This EN 144-3 is applicable to a thread connection used for the connection between a gas cylinder valve and a pressure reducer for respiratory equipment for diving containing breathable nitrox gas with an oxygen content greater than 22 % or oxygen. This European Standard specifies the dimensions and tolerances for connections which are used for respiratory equipment.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and, the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
EN 144-1, Respiratory protective devices — Gas cylinder valves — Part 11 Thread connections far insert connector.EN 144-3-2003 pdf download.