ISO/TR 7242:1981 Preview
Chemical analysis of light metals and their alloys -- Statistical interpretation of inter-laboratory trials
This standard was last reviewed and confirmed in 2006. Therefore this version remains current.
This Technical Report constitutes an attempt to explain the numerical results of a statistical examination in the simplest possible way and to show how statistical results can be used in laboratory practice. This simplified method is applicable when the number of laboratories is not more than 20 and when the number of results per laboratory is not more than 10.
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