Spring Testing and Verification

Only with a justified relationship between the accelerated condition and actual failure mechanisms. A simple cycle multiplier is insufficient.

State the completed cycle count and that the sample was stopped or remains unfailed at that count. Do not assign an invented lifetime.

Before testing, with criteria linked to required function and inspection method.

Define the start position, end position, direction sequence and return condition explicitly.

It evaluates setup-related measurement variation on the same identified part.

Use an agreed decision rule based on the method’s uncertainty and the specified limits.