(1) Gas-specific outlet connections. Portable cryogenic medical gas containers that are not manufactured with permanent gas outlet ports (e.g., those that have been brazed with silver) must have gas-specific outlet ports attached to the valve body so that they cannot be easily removed or replaced (without rendering the valve inoperable and preventing the use of the containers), except by the manufacturer. For the purposes of this paragraph, `manufacturer` means any person or undertaking that fills high-pressure medical gas cylinders or cryogenic medical gas tanks. For the purposes of this Section, `portable cryogenic container of medical gas` means a container which can be transported and which is intended to be connected to a medical gas supply system in a hospital, health facility, nursing home, other facility or home health facility, or is a basic unit used to fill small tanks with cryogenic gas intended for use by individual patients. The term includes non-cryogenic containers that are not designed to be connected to a medical gas supply system, such as tank trucks, trailers, railway wagons, or small cryogenic gas containers intended for use by individual patients (including portable liquid oxygen units as defined in §868.5655 of this chapter). (2) Labelling and colouring requirements. The marking in paragraph 201.328(a) of this chapter shall be affixed to the means of containment in such a way that other marks are not affected and that it cannot be worn or removed accidentally during normal use. Each of these labels, as well as the materials used to colour medical gas containers, must be reasonably light-resistant, durable when exposed to atmospheric conditions, and difficult to absorb in water. (d) Standards or specifications, test methods and, where appropriate, cleaning, sterilization and treatment procedures for the removal of pyrogenic properties shall be written and followed for pharmaceutical containers and closures. (e) Containers and closures for medical gases shall meet the following requirements: (a) Pharmaceutical containers and closures shall not be reactive, additive or absorbent in such a way as to impair the safety, identity, concentration, quality or purity of the medicinal product beyond the official or specified requirements. (c) the containers and closures of medicinal products must be clean and, where the nature of the medicinal product so indicates, sterilised and treated in such a way as to eliminate pyrogenic properties and ensure their suitability for their intended use. These depyrogenation processes must be validated. (8) Tare or mass weight and labelling of water capacity.
DOT specification 4B, 4BA, 4BW and 4E cylinders used for LPG operation manufactured after 28 December 2022 shall bear the curb weight or mass weight mark. In addition, the bottle must be permanently marked with the water capacity. The owner of the cylinder must ensure that it bears the following information, if applicable: The following pages of government regulations link to this page. (g) heat treatment. Cylinder heads, cases or cylinders formed by drawing or pressing shall be subjected to uniform and appropriate heat treatment prior to testing in accordance with an applicable procedure specified in Table 1 of Appendix A to this Part. (i) net weight. The tare weight of a cylinder at the time of manufacture is 25 pounds or less, with a tolerance less than 3% and a higher tolerance of 1%; or for a cylinder that weighs more than 25 pounds at the time of manufacture, with a 2% lower tolerance and a 1% higher tolerance. The unladen weight indication shall correspond to the actual weight of the fully assembled cylinder, including the valve(s) and other fixed accessories. Removable protective caps or covers shall not be included in the weight of the cylinder. The tare is abbreviated to “TW”; or (b) steel. Open, electrical or oxygen-based steels of uniform quality must be used.
The percentage content shall not exceed: carbon, 0.25; phosphorus, 0.045; Sulphur, 0.050. The cylinder manufacturer must keep a record of intentionally added alloying elements. (1) Materials to be welded. Welding materials must be welded by copper brazing, copper alloy brazing or silver alloy.