This standard will provide methodology for estimating, monitoring, and reacting to changes in test method precision and bias within a laboratory by means of a control sample program. Other topics will include test method capability, and estimation of contributing factors for test method quality improvement.
The concept of laboratory precision, or long term within-laboratory intermediate precision, is not fully developed in E11 standards. The concept of intermediate precision covers a multitude of precision estimation scenarios, but appears to be limited to short term precision estimation with varying combinations of causative factors, such as analysts, instruments, equipment, reagents, time, and so forth, either within a single laboratory or across multiple laboratories. The standard will provide statistical techniques that should be useful to other ASTM committees, regulatory bodies, and the general testing community.
Keywordslaboratory precision, control sample program, test method capability
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development