40 2 2.2 Labelling gas cylinders The hazardous materials sticker on the shoulder of the container is conclusive The most important information is stated first: The colour of the label on the gas cylinder is not always correct; instead, it is an initial aid and is meant to be visible from far away. Only the hazardous material sticker on the shoulder of the cylinder is conclusive. Where can I find the label on the gas cylinder? The colour designation is placed on the shoulder of the cylinder. The cylinder jacket also bears the colour designation. Medical gases are the only exception, for which the cylinder is white. If the cylinder contains a gas mixture, then both colours are coded alternatively as rings. Basic colours for gas cylinders or cylinder bodies The basic gas cylinder colours indicated here are not mandatory; however, in practice the industry has by and large agreed to use the following classifications: • High-purity medical gases (see also, for example, our entry on oxygen): White cylinder body • Industrial gases: Grey cylinder body or same colour as the cylinder shoulder (but not white) • No specialised gases stipulated COMPRESSED GAS CYLINDERS | Labelling, use, fittings Sample
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