1 Scope
This International Standard gives requirements for the performance and safety of stand-alone gas mixers intended for medical use and intended for connection to a medical gas supply system. Rationales for some of the requirements are given in annex B.
This International Standard does not apply to
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a) blocks of flowmeters with separate controls for the flow of each gas;
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b) gas mixers which mix oxygen with ambient air;
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c) gas mixers which depend on other medical devices for functions required by this standard.