ISO 32:1977 Preview
Gas cylinders for medical use -- Marking for identification of content
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
Cancels and replaces ISO recommendation R 32-1957, and its amendment 1-1966. Establishes a system of marking and a series of colours for the identification of the content of gas cylinders. In the case of gas mixtures, the cylinder shall bear the appropriate colours for the gases comprising the mixture, such colours to be visible from the valve end.
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