ISO 13528:2005 PDF

Scope: This International Standard complements ISO Guide 43 (all parts) by providing detailed descriptions of sound statistical methods for organizers to use to analyse the data obtained from proficiency testing schemes, and by giving recommendations on their use in practice by participants in such schemes and by accreditation bodies. This International Standard can be applied to demonstrate that the measurement results obtained by laboratories do not exhibit evidence of an unacceptable level of bias. It is applicable to quantitative data but not to qualitative data.

ISO 13528:2005 Referenced Document

ISO 3534-1 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability
ISO 3534-2 Statistics - Vocabulary and symbols - Part 2: Applied statistics*， 2006-09-01 Update
ISO 5725-1 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions*， 2023-07-01 Update
ISO/IEC Guide 43-1:1997 Proficiency testing by interlaboratory comparisons - Part 1: Development and operation of proficiency testing schemes

2022 ISO 13528:2022 Statistical methods for use in proficiency testing by interlaboratory comparison
2015 ISO 13528:2015 Statistical methods for use in proficiency testing by interlaboratory comparison
2005 ISO 13528:2005 Statistical methods for use in proficiency testing by interlaboratory comparisons