As per Department of Transportation (DOT) specification, cylinders with a maximum water capacity of _____ shall be used for completely self-contained hand torches and similar applications.

Cylinders used for completely self-contained hand torches and similar applications must adhere to specific guidelines set by the Department of Transportation (DOT). According to the regulations, cylinders with a maximum water capacity of 2.5 pounds are specified for use in these scenarios. This weight limit ensures safety and compliance with transportation and handling practices for pressurized gas cylinders, particularly in situations where manual handling and portability are important, such as with hand torches.

This designation helps to mitigate risks associated with the use of more substantial, potentially more hazardous cylinders in non-industrial or portable applications, ensuring that users can operate these tools safely without excessive weight or pressure that could lead to accidents or injuries. Understanding these limitations is crucial for anyone involved in HVAC or similar fields where such equipment is commonplace.