Quick answer: State the completed cycle count and that the sample was stopped or remains unfailed at that count. Do not assign an invented lifetime.
How should a sample that has not failed be reported?
A runout is evidence of survival under the documented duty, not proof of indefinite life. Include the reason for stopping and any measured performance changes. Keep failed and unfailed populations distinguishable in the summary.
A practical verification method
Reconcile sample histories and report actual counts, conditions and dispositions for each sample.
| Item | What to record | Purpose |
|---|---|---|
| Reference configuration | Part or assembly identity and drawing revision | Make comparisons traceable |
| Test conditions | Relevant position, direction and operating condition | Compare the same characteristic |
| Decision evidence | Reconcile sample histories and report actual counts, conditions and dispositions for each sample. | Resolve the specific question before approval |
Use the result in an engineering request
Describe the observed condition and the required function separately. Include the relevant drawing revision and your results from the check above. If an acceptance limit has not been established, identify it as an open design input rather than treating a successful trial as approval.
Review the related Leading Spring product information. For a project-specific review, send the mechanism description, available geometry and the evidence relevant to this decision through the contact page.
Editorial note: AI-assisted engineering guidance, prepared from the topic-specific reasoning shown here and the company’s public product context. Illustrations explain decisions; they are not customer-case photographs or test results. Product-specific suitability requires review against your approved requirements.