1 Scope
2 References
3 Definitions
4 Types of proficiency testing
4.1 General
4.2 Measurement comparison schemes
4.3 Interlaboratory testing schemes
4.4 Split-sample testing schemes
4.5 Qualitative schemes
4.6 Known-value schemes
4.7 Partial-process schemes
5 Organization and design
5.1 Framework
5.2 Staff
5.3 Data-processing equipment
5.4 Statistical design
5.5 Test item preparation
5.6 Test item management
5.7 Choice of method/procedure
5.8 Evolution of proficiency testing schemes
6 Operation and reporting
6.1 Coordination and documentation
6.2 Instructions
6.3 Packaging and transportation
6.4 Data analysis and records
6.5 Scheme reports
6.6 Evaluation of performance
6.7 Communication with participants
7 Confidentiality/ethical considerations
7.1 Confidentiality of records
7.2 Collusion and falsification of results
Annexes
A Examples of statistical methods for treatment of proficiency
test data
B Quality management of proficiency testing schemes
C Bibliography