NF EN 850/A1

<p>ISO 407:2004 concerns pin-index yoke-type valve connections for small medical gas cylinders, with a maximum working pressure (filling pressure at 15 °C) of 200 bar. This type of connection is typically used for small cylinders (5 l or below). In some cases, it may be used for larger cylinders. In this latter case, consideration shall be given to the need for valve protection.</p> <p>It specifies:</p> <ul><li>basic dimensions;</li><li>requirements for alternative designs of the yoke-type valve connections;</li><li>dimensions and positions for the holes and pins for the outlet connections.</li></ul> <p>It also specifies the dimensions and positions for the holes and pins for the outlet connections for certain gases and gas mixtures.</p> <p>ISO 407:2004 applies to small medical gas cylinders used for patient care, including therapeutic, diagnostic and prophylactic applications, in hospitals and for emergency treatment.</p>