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Overview: Under the direction of PVE/3, is responsible for the UK input into ISO/TC 58/SC 4 and CEN/TC 23/WGs 31, 32, 33 & 35 and for standards related to the filling conditions, periodic inspection and testing, stamping, colour coding and labelling of gas cylinders (receptacles) and cylinder bundles for the transport of compressed, liquefied and dissolved gases. It excludes cryogenic vessels and aerosols.