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Limits of tolerance and z-scores in ring tests

  • S. Uhlig
  • P. Henschel
ORIGINAL PAPER

Abstract

 A series of objections are discussed to the use of symmetrical tolerance intervals in ring tests as part of a procedure for laboratory assessment. Instead, a modified, asymmetrical tolerance interval is introduced which takes these objections into consideration. A modified z-score is proposed corresponding to the modified tolerance interval.

Keywords

Laboratory Assessment Tolerance Interval Ring Test Asymmetrical Tolerance Symmetrical Tolerance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • S. Uhlig
    • 1
  • P. Henschel
    • 2
  1. 1.Freie Universität Berlin, Garystrasse 21, D-14195 Berlin, GermanyDE
  2. 2.Umweltbundesamt, Bismarckplatz 1, D-14193 Berlin, GermanyDE

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