Advancing excellence in laboratory medicine for better healthcare worldwide

Commutability (WG-C)


Name Position Country Term Time in Office
G. Miller Chair US extra-term 2019 01 - 2019 12
H. Althaus Member DE
J. Budd  Member US
C. Burns Member UK
A. Caliendo Member US
J. Camara Member US
G. Cattozzo Member IT
F. Ceriotti  Member IT
C. Cobbaert Member NL
V. Delatour Member FR
R. Durazo Member US
N. Greenberg Member US
G. Horowitz Member US
P. Kaiser Member DE
A. Kessler Member DE
A. Killeen Member US
P. Lindstedt Member SE
F. MacKenzie Member UK
G. Nilsson Member SE
M. Nuebling Member DE
M. Panteghini Member IT
K. Phinney  Member US
R. Rej Member US
R. Romeu Member FR
S. Sandberg Member NO
H. Schimmel  Member EU
G. Schumann Member DE
M. Spannagl Member DE
J. Vaks Member US
H. Vesper Member US
C. Weykamp Member NL
I. Zegers Member EU
J. Huang Observer CN


Terms of Reference

  • Establish operating procedures for the formal assessment of the commutability of a reference material intended for use as a calibrator, trueness control or EQA sample, taking into account different measurement procedure properties and categories of traceability described in ISO 17511.
  • Establish procedures to correct for bias in a metrological traceability hierarchy caused by non-commutability, or by bias that meets a commutability criterion, of a reference material.
  • Establish how to define the criterion for acceptable commutability that is required for a given reference material, taking into account its intended use and the intended use of the measurand.
  • Advise IFCC Committees and Working Groups on how to assess the commutability of materials on which they are working.

Current Projects

  • Recommendations for assessing commutability part 1: general experimental design; completed see Clin Chem 2018;64:447-54
  • Recommendations for assessing commutability part 2: using the difference in bias between a reference material and clinical samples; completed see Clin Chem 2018;64:455-64
  • Recommendations for assessing commutability part 3: using the calibration effectiveness of a reference material; completed see Clin Chem 2018;64:465-74
  • Recommendations for assessing commutability part 4: correction of bias caused by non-commutability of a certified reference material used in the calibration hierarchy of an end-user measurement procedure
  • Recommendations for assessing commutability part 5: validation of commutability for a replacement batch of a reference material
  • Recommendations for assessing commutability part 6: criteria for making an assessment of commutability of a reference material 


List of Corresponding Members, nominated by National Societies

Name Full and Affiliate Member Societies
Thomas Keller Deutsche Gesellschaft für Klinische Chemie und Laboratoriumsmedizin e.V. (DGKL)
Keita Yamashita Japan Society of Clinical Chemistry (JSCC)
Dalius Vitkus Lithuanian Society of Laboratory Medicine
Ajie Obiefuna Association of Clinical Chemists Nigeria (ACCN)
Okan Dogan Turkish Biochemical Society (TBS)


List of Corresponding Members, nominated by Corporate Members

Name Corporate members
George Schneider ABBOTT Diagnostics
Vesna Kostanjevecki FUJIREBIO Europe
Tobias Livingstone HELENA Biosciences

Working Group Chairs'  contact

Greg Miller, Ph.D.
Professor of Pathology
Director of Clinical Chemistry
Director of Pathology Information Systems
Virginia Commonwealth University
403 N. 13th Street, Room 501
Richmond, VA 23298-0286
Tel.: + 1-804-828-0375
Fax:  + 1-804-828-0353

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