1.范围1。1本标准适用于医疗设施和指定家庭使用的医用气体的所有压力调节器、仪表和流量计量装置，例如（a）医用气体系统；（b） 在麻醉机、肺呼吸机、便携式氧气治疗设备或其他治疗、诊断、研究或教学设备上。注:本标准的用户应参考CSA标准CAN3-Z168。3，CAN3-Z168。5，CAN3-Z168。7和CAN3-Z305。1.其他适用要求。1.2本标准包括结构、性能和标签要求，以及正确应用压力调节器、仪表和流量的要求- 医用气体系统或麻醉机、肺呼吸机或其他治疗、诊断、研究或教学设备上的计量装置。1.3本标准的目的是（a）确保压力调节器、仪表和流量计量装置的安全性能和结构；以及（b）最大限度地减少因使用压力调节器、压力计和流量计量装置而产生的危险，这些装置带有压力下的医用气体。1.4本标准包含以下两部分:（a）第一部分包含与调压器、压力表和流量表的结构、性能、信息和标记有关的要求- 计量装置（见第3条至第6条）；（b）第二部分包含与压力调节器和流量计量装置的使用有关的要求（见第7条）。注:括号中给出的值仅供参考。

1. Scope1.1This Standard applies to all pressure regulators, gauges, and flow-metering devices for medical gases in health care facilities and prescribed domiciliary use, eg, (a) in medical gas systems; (b) on anaesthetic machines, lung ventilators, portable oxygen therap y equipment, or other therapeutic, diagnostic, research, or teaching equipment.Note:Users of this Standard should refer to CSA Standards CAN3-Z168. 3, CAN3-Z168.5, CAN3-Z168.7, and CAN3-Z305.1 for other applicable requirements.1.2This Standard includes construction, performance, and labelling r equirements as well as requirements for the correct application of pressure regulators, gauges, and flow-metering devices in medical gas systems or on anaesthetic machines, lung ventilators, or other therapeutic, diagnostic, research, or teaching equipment.1.3The purpose of this Standard is (a) to ensure the safe performance and construction of pressure regulators, gauges, and flow-metering devices; and (b) to minimize hazards resulting from the use of pressure regulators, gauges, and flow-metering devices with medical gases under pressure.1.4This Standard contains two parts as follows: (a) Part I contains requirements relating to construction, performance, information on, and marking of pressure regulators, gauges, and flow-metering devices (see Clauses 3 through 6); and (b) Part II contains requirements relating to the use of pressure regulators and flow-metering devices (see Clause 7). Note: The values given in parentheses are provided for informa tion purposes only.