This National Standard of Canada is based on International Standard ISO 10524:1995. 1 Scope 1.1 This International Standard specifies requirements for pressure regulators
and pressure regulators with flow-metering devices intended for the
administration of medical gases in the treatment, management, diagnostic
evaluation and care of patients. It applies to the types of pressure regulators
given in a) and c) for use with the following medical gases: air
carbon dioxide
helium
oxygen
nitrogen
nitrous oxide
xenon
mixtures of oxygen and carbon dioxide
mixtures of oxygen and helium
mixtures of oxygen and nitrogen
mixtures of oxygen and nitrous oxide The types of pressure regulators are as follows: a) high-pressure regulators (inlet pressure up to 20 000 kPa) intended to be
connected by the user to high-pressure gas cylinders; c) low-pressure regulators (inlet pressure up to 1 400 kPa) intended to be
connected by the user to terminal units of medical gas pipeline systems. This International Standard also applies to the following types of pressure
regulators with flow-metering devices: d) pressure regulators with integral flow-metering devices as described in a)
and c); e) pressure regulators with flow-metering devices that are not integral with
the types of pressure regulators described in a) and c) but are not intended to
be detached from the pressure regulator by the user. 1.2 This International Standard does not apply to a) high-pressure and low-pressure regulators that are an integral part of
medical gas pipeline systems; b) low-pressure regulators, with or without flow-metering devices, that are an
integral part of medical equipment; c) pressure regulators integrated within cylinder valves; d) vacuum regulators. dA) high-pressure regulators (inlet pressure up to 20 000 kPa) that are an
integral part of medical equipment (e.g., anaesthetic machines, lung
ventilators, resuscitators).