1、Designation:G17513Standard Test Method forEvaluating the Ignition Sensitivity and Fault Tolerance ofOxygen Pressure Regulators Used for Medical andEmergency Applications1This standard is issued under the fixed designation G175;the number immediately following the designation indicates the year ofori
2、ginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 For the purpose of this standard,a pressure regulator,also called a p
3、ressure-reducing valve,is a device intended formedical or emergency purposes that is used to convert amedical or emergency gas pressure from a high,variablepressure to a lower,more constant working pressure 21 CFR868.2700(a).Some of these oxygen pressure regulators are acombination of a pressure reg
4、ulator and cylinder valve.Thesedevices are often referred to as valve integrated pressureregulators,or VIPRs.1.2 This standard provides an evaluation tool for determin-ing the ignition sensitivity and fault tolerance of oxygenpressure regulators and VIPRs used for medical and emergencyapplications.A
5、n ignition-sensitive pressure regulator or VIPRis defined as having a high probability of ignition as evaluatedby rapid pressurization testing(Phase 1).A fault-tolerantpressure regulator or VIPR is defined as having a low conse-quence of ignition as evaluated by forced ignition testing(Phase 2).NOTE
6、1It is essential that a risk assessment be carried out onbreathing gas systems,especially concerning toxic product formation dueto ignition or decomposition of nonmetallic materials as weighed againstthe risk of flammability(refer to Guide G63 and ISO 15001.2).SeeAppendix X1 and Appendix X2 for deta
7、ils.1.3 This standard applies only to:1.3.1Oxygen pressure regulators used for medical andemergency applications that are designed and fitted with CGA540 inlet connections,CGA870 pin-index adapters(CGAV-1),or EN ISO 407 pin-index adapters.1.3.2 Oxygen VIPRs used for medical and emergencyapplications
8、 that are designed to be permanently fitted to amedical gas cylinder.1.4 This standard is a test standard not a design standard;This test standard is not intended as a substitute for traditionaldesign requirements for oxygen cylinder valves,pressureregulators and VIPRs.A well-designed pressure regul
9、ator orVIPR should consider the practices and materials in standardssuch as Guides G63,G88,G94,and G128,Practice G93,CGAE-18,CGA E-7,ISO 15001,ISO 10524-1 and ISO 10524-3.NOTE2Medical applications include,but are not limited to,oxygengas delivery in hospitals and home healthcare,and emergency applic
10、ationsincluding,but not limited to,oxygen gas delivery by emergency person-nel.1.5 This standard is also intended to aid those responsiblefor purchasing or using oxygen pressure regulators and VIPRsused for medical and emergency applications by ensuring thatselected pressure regulators are tolerant
11、of the ignition mecha-nisms that are normally active in oxygen systems.1.6 This standard does not purport to address the ignitionsensitivity and fault tolerance of an oxygen regulator or VIPRcaused by contamination during field maintenance or use.Pressure regulator and VIPR designers and manufacture
12、rsshould provide design safeguards to minimize the potential forcontamination or its consequences(see Guide G88).NOTE3Experience has shown that the use of bi-direction flow filtersin components can lead to accumulation and re-release of contaminants(refer to Guide G88-05 Section 7.5.3.8 and EIGA Inf
13、o 21/08).1.7 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.8 This standard does not purport to address all of thesafety concerns,if an
14、y,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:21This test method is under the jurisdiction of ASTM C
15、ommittee G04 onCompatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres and isthe direct responsibility of Subcommittee G04.01 on Test Methods.Current edition approved Oct.1,2013.Published November 2013.Originallypublished as PS 127 00.Last published in 2011 as G175 03(2011).DOI:10.
16、1520/G0175-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 G63 Guide for Evaluating Nonmetallic Materials for Oxy-gen ServiceG88 Guide for Designing Systems for Oxygen ServiceG93 Practice for Cleaning
