Spring Test Temperature Conditioning Time
The assembly and measurement system need a defined thermal condition before results can be compared.
Spring Test Sample Size and Report Scope
State how many identified samples were tested, how they were selected and which batches or conditions they represent.
Spring Accelerated Testing and Field-Life Claims
Only with a justified relationship between the accelerated condition and actual failure mechanisms. A simple cycle multiplier is insufficient.
Spring Life Test Censored Samples and Runouts
State the completed cycle count and that the sample was stopped or remains unfailed at that count. Do not assign an invented lifetime.
Spring Life Test Failure Criteria Before Starting
Before testing, with criteria linked to required function and inspection method.
Spring Cycle Test Stroke Definition
Define the start position, end position, direction sequence and return condition explicitly.