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ISO 32:1977
M00003442
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ISO 32:1977 Gas cylinders for medical use - Marking for identification of content
standard by International Organization for Standardization, 05/01/1977
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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.