Tare weight is used when calculating cylinder filling by weight to determine the net weight of propane by subtracting the cylinder's tare from the gross weight.

• A. True
• B. False
• C. Not used
• D. It adds to gross weight

Answer: (A)

When filling cylinders by weight, you determine the actual amount of propane by comparing what’s on the scales to what is already there before adding propane. The empty cylinder’s weight is called the tare weight, and the full cylinder’s weight is the gross weight. Subtracting the tare from the gross gives the net weight of propane. This makes sense because gross includes the cylinder itself, while tare is just the cylinder’s own weight. Knowing the tare lets you arrive at the precise propane quantity, which is why this method uses tare in the calculation.