ASTM E 2935 : 2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Practice for Conducting Equivalence Testing in Laboratory Applications
Hardcopy , PDF
11-11-2014
English
01-08-2013
1.1This practice provides statistical methodology for conducting equivalence testing on numerical data from two sources to determine if their true means are similar within predetermined limits.
1.2Applications include (1) equivalence testing for bias against an accepted reference value, (2) determining equivalence of two test methods, test apparatus, instruments, reagent sources, or operators within a laboratory, and (3) equivalence of two laboratories in a method transfer.
1.3The current guidance in this standard applies only to experiments conducted on a single material. Guidance is given for determining the amount of data required for an equivalence trial.
1.4The statistical methodology for determining equivalence used is the “Two one-sided t-test” (TOST). The control of risks associated with the equivalence decision is discussed.
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