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Significance and Use
This practice 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. (Warning—The data from proficiency testing programs must never be used to assign certification values to the materials used in the program. The elements of a properly conceived and implemented certification program are described in detail in Guide E1724.)
Most accreditation bodies require that laboratories participate regularly in proficiency testing programs that they have accepted for the purpose. Therefore, it is essential that each program comply with accepted principles including technical requirements, statistical procedures (see Annex A1), and quality management (see Annex A2).
1.1 This practice provides direction for organizing and conducting proficiency test programs in analytical chemistry for metals, ores, and related materials. It is consistent with ISO Guide 43 and Guide E1301. It does not address the selection and use of proficiency testing schemes by accrediting bodies.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E826 Practice for Testing Homogeneity of a Metal Lot or Batch in Solid Form by Spark Atomic Emission Spectrometry
E1187 Terminology Relating to Conformity Assessment
E1301 Guide for Proficiency Testing by Interlaboratory Comparisons
E1724 Guide for Testing and Certification of Metal, Ore, and Metal-Related Reference Materials
ISO StandardsISOGuide9000 Quality Management and Quality System Elements
ICS Number Code 71.040.40 (Chemical analysis)
UNSPSC Code 11100000(Minerals and ores and metals)