Work Item
ASTM WK87786
Revision of D6299-22e1 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
Rationale
3.2.8.1 Discussion—A check standard is preferably a material that is either a certified reference material with traceability to
a nationally recognized body or a material that has an accepted reference value established through an interlaboratory testing
program that is open to and has diversified representation from different organizations. Interlaboratory testing performed by
laboratories within a single parent organization may share sources of bias and/or variability that negatively impact the
accuracy of the ARV or the standard error of the ARV. Therefore, materials tested in such programs should not be used as
check standards. For some measurement systems, a pure, single component material having known value or a simple
gravimetric or volumetric mixture of pure components having calculable value may serve as a check standard. Users should be
aware that for measurement systems that show matrix dependencies, accuracy determined from pure compounds or simple
mixtures may not be representative of that achieved on actual samples
Work Item Status
Date Initiated: 09-08-2023
Technical Contact: Kenneth Hart