1.1 This practice describes procedures and methodologies based on the statistical principles of Practice to validate whether the degree of agreement between the results produced by a total analyzer system (or its subsystem), versus the results produced by an independent test method that purports to measure the same property, meets user-specified requirements. This is a performance-based validation, to be conducted using a set of materials that are not used a priori in the development of any correlation between the two measurement systems under investigation. A result from the independent test method is herein referred to as a Primary Test Method Result (PTMR).
1.1.1 The degree of agreement described in can be either for the same materials, or, for materials including effect from additional treatment to the basestock material.
Note 1: Subsection refers to the application where PPTMR for the same material can be used as an input to a mathematical model to predict the effect of an additive added to the basestock material as by a PTM.
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