When should the sniff test to detect odorization be performed?

The sniff test for detecting the odorization of LP-gas should be performed when LP-gas is delivered to the bulk plant or shipped directly to the customer. This is an essential procedure because it ensures that the gas is adequately odorized, allowing for safety measures to be effectively in place. Odorization is crucial as it provides a warning to users about gas leaks, which could potentially lead to dangerous situations.

Carrying out this test at both delivery points (bulk plant and customer site) ensures that the integrity of the LP-gas odorization is maintained throughout the supply chain. If the gas is not properly odorized, there might be a failure to detect leaks, putting users at risk. Therefore, performing the sniff test during these delivery stages is a vital part of the safety protocols regarding propane use.

In contrast, only performing the test after delivery to the customer would risk safety if there were any issues at the bulk plant. Limiting the test to the bulk plant does not guarantee that the gas remains odorized at the point of use. Similarly, conducting the sniff test on a monthly basis without regard to delivery would not ensure safety during critical moments when the gas is initially transported or delivered.