Institute for Interlaboratory Studies
Spijkenisse, The Netherlands
iis organises all kinds of interlaboratory studies (ILS) on a professional basis:
Type of study |
Also known as |
Proficiency Testing (PT) |
Interlaboratory comparison, laboratory evaluating study, round robin, cross check program, correlation program, co-operative trial, Ringversuch |
Method validating studies |
Collaborative trial, collaborative test |
Material characterising studies |
Preparation of reference materials |
Besides the Institute's annual program with proficiency tests, tailor made studies are organised on request.
In all studies confidentiality is
guaranteed. Test results, the performance (z-score), the test methods and any other information that is provided by a participating laboratory, is reported under a unique code. The relation between the code and the participant's name is only revealed to the laboratory itself. See the FAQ page for more details on the iis' PT program.