ISO 13340 pdf download

ISO 13340 pdf download.Transportable gas cylinders — Cylinder valves for non-refillable cylinders — Specification and prototype testing 1 Scope This Standard specifies requirements for gas cylinder valves to be used with non refillable cylinders and the method of testing such valves for prototype approval. NOTE : Non refillable gas cylinders are specified in prEN 1 2205:1 998 and ISO/FDIS 1 1 1 1 8:1 999. This Standard is not applicable to valves for breathing equipment, fire extinguishers and cryogenic 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 720-2 Transportable gas cylinders – Gases andgas mixtures – Part 2 : Determination offlammabilityandoxidizing abilityofgases andgas mixtures EN 849 Transportable gas cylinders – Cylindervalves – Specification andtype testing EN ISO 1 1 1 1 4-1 Transportable gas cylinders – Compatibilityofcylinderandvalve materials with gas contents – Part 1 : Metallic materials (ISO 11114-1:1997) EN ISO 1 1 1 1 4-2 Transportable gas cylinders – Compatibilityofcylinderandvalve materials with gas contents – Part2 : Non-metallic materials (ISO 11114-2:2000) ISO 1 88 Rubber, vulcanizedorthermoplastic – Acceleratedageing andheat-resistance tests ISO 1 81 7 Rubber, vulcanized- Determination ofthe effectofliquids ISO 51 45:1 990 Cylindervalve outlets forgases andgas mixtures – Selection anddimensioning 3 Terms and definitions For the purposes of this standard, the following definitions apply : 3.1 working pressure (p w ) settled pressure, at a uniform temperature of 1 5 °C, for a full gas cylinder 3.2 valve test pressure (p vt ) for compressed gases:For liquefied gases and dissolved gases under pressure (for example, acetylene), p vt is at least equal to the minimum test pressure of the cylinder quoted in the relevant transportation regulation for that gas or gas group, taking account of the actual filling ratio to be used. NOTE : Transportation regulations sometimes offer a choice of filling ratio together with appropriate minimum test pressures. Generally, p vt will be the highest of these minimum test pressures for the gas, but in circumstances where a lower filling ratio is to be used, p vt may...