How should cylinders be marked according to regulations?

Cylinders must be marked in accordance with regulations to ensure safety, compliance, and proper identification of the contents. Regulatory bodies, such as the Department of Transportation (DOT) and other relevant agencies, set strict guidelines on how gas cylinders should be marked. This includes labeling with essential information such as the type of gas contained, hazard warnings, and specifics about the cylinder's capacity and manufacturer details.

Proper marking is critical for emergency responders, handlers, and transporters to quickly understand the nature of the gas and take appropriate safety measures. The regulations also help prevent mix-ups between different gases that could lead to accidents or unsafe situations. This consistent marking standard is an essential part of the transportation and handling protocols for compressed natural gas and other gases, ensuring both safety and regulatory compliance in operations.