What is the main purpose of odorizing LP gases prior to delivery?

The primary reason for odorizing liquefied petroleum gas (LP gas) before delivery is to ensure that it can be easily detected in the event of a leak. LP gases, such as propane and butane, are inherently odourless and therefore present a significant safety risk if they escape undetected. By adding a strong-smelling substance, typically a compound like ethyl mercaptan, the gas becomes noticeable even at very low concentrations. This feature is crucial for preventing dangerous situations, as it allows individuals to react swiftly if they smell gas, thereby reducing the risk of fire or explosion.

Other options do not align with the main objective of odorization. Enhancing flavor is irrelevant to the uses of LP gas, which is a fuel rather than a consumable product. Increasing pressure does not relate to safety detection, as odorization is unrelated to how gas is stored or delivered. Stabilizing gas composition is also not a factor related to the purpose of odorization, which is solely about safety measures rather than altering the chemical properties of the gas.