What is the first step in determining the set scale weight for filling a DOT cylinder?

The first step in determining the set scale weight for filling a Department of Transportation (DOT) cylinder is to check the tare weight of the container. The tare weight refers to the weight of the empty cylinder before any product is added. Knowing the tare weight is essential because it provides a baseline for calculating the total weight of the filled cylinder and ensures that the appropriate amount of propane is added without exceeding the cylinder's capacity.

Once the tare weight is established, it can be used in conjunction with the propane capacity to determine how much propane can be safely filled into the cylinder without breaching safety regulations. This process ensures that the weight of the filled cylinder does not exceed the specified maximum allowable weight, which is critical for safe transportation and handling of pressurized gas containers. By starting with the tare weight, all further calculations for filling can be based on this accurate measurement, making it a crucial first step in the process.