1.1 This document specifies requirements for flow control devices that can be connected by the user either directly, by means of a probe or a gas-specific connector, or indirectly by means of a low-pressure hose assembly conforming with
ISO 5359 to:
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a) a terminal unit conforming with ISO 9170‑1 of a medical gas pipeline system conforming with ISO 7396‑1:2016;
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b) the pressure outlet of a regulator conforming with ISO 10524‑1:2018; or
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c) to the pressure outlet of a valve integrated pressure regulator (VIPR) conforming
with ISO 10524‑3 (see 5.2 gas inlets).