https://doi.org/10.1351/goldbook.08104
Proficiency testing designed and operated in one or more proficiency testing rounds for a specified area of testing, measurement, calibration, or inspection.
Notes:
- A proficiency testing scheme might cover a particular type or number of tests, measurements, calibrations or inspections on proficiency test items.
- The use of terms such as "ring test", "round robin", "intercalibration", "intercomparison", "collaborative study", etc. for proficiency testing schemes is not recommended in formal documents.