Pressure regulators for use with medical gases – Part 3: Pressure regulators integrated with cylinder valves (ISO 10524-3:2005)
DIN EN ISO 10524-3:2013-06 (E)
Pressure regulators for use with medical gases – Part 3: Pressure regulators
integrated with cylinder valve s (ISO 10524-3:2005 + Amd 1:2013) (includes
Amendment A1:2013)
Contents Page
Foreword to EN ISO 10524:2005 …………………………………………………………………………………………………….. 3
Introduction …………………………………………………………………………………………………………………………………… 4
1 Scope …………………………………………………………………………………………………………………………….. 5
2 Normative references …………………………………………………………………………………………………….. 5
3 Terms and definitions …………………………………………………………………………………………………….. 6
4 Symbols ………………………………………………………………………………………………………………………… 8
5 General requirements …………………………………………………………………………………………………….. 8
5.1 Safety …………………………………………………………………………………………………………………………….. 8
5.2 Alternative construction …………………………………………………………………………………………………. 8
5.3 Materials ………………………………………………………………………………………………………………………… 8
5.4 Design requirements ………………………………………………………………………………………………………. 9
5.5 Constructional requirements ………………………………………………………………………………………… 16
6 Test methods ……………………………………………………………………………………………………………….. 17
6.1 Conditions ……………………………………………………………………………………………………………………. 17
6.2 Test methods for outlet pressure ………………………………………………………………………………….. 18
6.3 Test method for pressure-relief valve ……………………………………………………………………………. 19
6.4 Test methods for leakage ……………………………………………………………………………………………… 19
6.5 Test method for mechanical strength ……………………………………………………………………………. 20
6.6 Test method for resistance to ignition …………………………………………………………………………… 21
6.7 Test method for accuracy of flow of pressure regulators integrated with cylinder valves
fitted with flowmeters or flowgauges …………………………………………………………………………….. 24
6.8 Test method for the stability of flow of pressure regulators integrated with cylinder
valves fitted with flowmeters or flowgauges ………………………………………………………………….. 24
6.9 Test method for stability and accuracy of flow of pressure regulators integrated with
cylinder valves fitted with fixed orifices ………………………………………………………………………… 24
6.10 Test method for flow setting and loosening torques ……………………………………………………… 24
6.11 Drop test ………………………………………………………………………………………………………………………. 25
6.12 Impact test …………………………………………………………………………………………………………………… 25
6.13 Test method for means of gas shut-off ………………………………………………………………………….. 26
6.14 Test method for non-return valve of filling port ……………………………………………………………… 26
6.15 Test method for durability of markings and colour coding …………………………………………….. 26
7 Marking, colour coding, packaging ……………………………………………………………………………….. 26
7.1 Marking ………………………………………………………………………………………………………………………… 26
7.2 Colour coding ………………………………………………………………………………………………………………. 27
7.3 Packaging ……………………………………………………………………………………………………………………. 27
8 * Information to be supplied by the manufacturer ………………………………………………………….. 28
Annex A (informative) Examples of pressure regulators integrated with cylinder valves ……………….. 30
Annex B (normative) Rationale …………………………………………………………………………………………………….. 33
Annex C (informative) Reported regional and national deviations of colour coding and
nomenclature for medical gases …………………………………………………………………………………… 35
Bibliography ……………………………………………………………………………………………………………………………….. 37
Annex ZA ……………………………………………………………………………………………………………………………………. 38