HS Code 7311000000: empty medical gas cylinders, portable, for medical gases, fitted with a valve and a pressure and flow regulator.

Draft Belize Standard Specification for Marking and Labelling of Medical Gas Cylinders; (47 page(s), in English)

This standard provides minimum requirements for labels and markings on compressed gas in cylinders and cryogenic liquid containers cylinders containing for medical gases namely for medical air, oxygen, carbon dioxide, helium, nitrogen, nitrous oxide and mixtures. Labels shall be applied to compressed gas and cryogenic liquid containers to identify the container contents and to warn of principal physical and health hazards associated with the container and its contents. Labels as given herein with regard to cylinder handling and storage information may be modified with respect to format so they can be applied as required to fixed storage vessels, portable tanks, tube trailers, cargo tanks, or other packaging.