Which information is NOT typically checked on a cylinder label before use?

• A. Color of the cylinder
• B. Contents
• C. Tare weight
• D. Service pressure

Answer: (D)

When you inspect a propane cylinder before use, you’re looking to confirm what’s inside and how much is there, plus make sure the cylinder is the right match for the equipment you’ll connect. The label always provides the contents so you know it’s propane, and it also lists the tare weight, which tells you the empty cylinder’s weight. With those two pieces, you can verify the gas type and estimate the remaining amount.

Coloring serves as a quick visual cue to identify the cylinder at a glance, but it’s not something you rely on alone for safety or correctness. The service pressure, while a fixed rating for the cylinder’s design, isn’t something you typically verify as part of a routine pre-use check by reading the label; the delivered pressure is controlled by the regulator, and the label’s rating isn’t something you adjust or confirm on the spot.