Frequently asked questions
Proficiency testing

What's the difference between an interlaboratory study and an interlaboratory comparison?

An interlaboratory study (ILS) is a procedure used to estimate the precision parameters of a method. Why carry out interlaboratory studies? [FIC 1418] describes this type of procedure, which is very different from an ILC, mainly because a single analytical method is used. In addition, the main aim of a "proficiency test by interlaboratory comparison", as ISO 13528 calls it, is to assess the ability of an individual...