Aligning Test Methodology with Failure Modes, Service Environments, and the Decisions the Tests are Meant to Inform
Environmental test chambers are among the most visible capital investments in a reliability laboratory. They occupy floor space, draw power, and confer a tangible sense of analytical readiness on their owners. The persistent failure mode in their use is not technical. It is cognitive. The presence of a chamber subtly biases the test programme toward the questions the chamber can answer rather than the questions the product’s service environment actually poses.