This International Standard provides numerical methods to complement graphical techniques in performing a goodness-of-fit test for Weibull distributed times to failure and gives an approximate procedure to obtain confidence intervals for the parameters of the two-parameter Weibull distribution when these are estimated by maximum likelihood. In addition, it provides a recommended procedure to obtain lower confidence limits for the 10 % fractiles of the lifetime and for the reliability function.
This standard is applicable whenever a random sample of items is subjected to a test of times to failure for the purpose of estimating measures of reliability performance of the population from which these items were drawn.