ASTM E2027-17e1 pdf free download.Standard Practice for Conducting Proficiency Tests in the Chemical Analysis of Metals, Ores, and Related Materials.
ASTM E2027-17e1 provides direction for organizing and conducting proficiency test programs in analytical chemistry for metals, ores, and related materials. It is consistent with ISO/IEC 17043 and Guide E1301. It does not address the selection and use of proficiency testing schemes by accrediting bodies.
ASTM E2027-17e1 sets the basic requirements for proficiency test programs in the chemical analysis of metals, ores, and related materials. It does not set specific procedural requirements, but does establish a framework for particular programs, including those with either small or large numbers of participants.
The data from proficiency testing programs can be used for value assignments for in-house reference materials developed in accordance with Guide E2972.
Although proficiency testing programs are intended primarily to help participants improve their performance, there may be a tendency among some participants to provide a falsely optimistic impression of their capabilities. For example, collusion may take place between laboratories, so that truly independent data are not submitted. Laboratories may also give a false impression of their performance if they routinely carry out single analyses, but report the mean of replicate determinations on the proficiency test materials or conduct additional replicates to those specified for a particular program. Proficiency testing programs shall be designed to minimize collusion and falsification. Requesting copies of log files and output generated by the apparatus or its software might reduce the risk of collusion or falsification of results, or both.
Keywords:
9.1 practice; proficiency testing; protocol

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