Advancing excellence in laboratory medicine for better healthcare worldwide

Commutability (WG-C)


Name Position Country Term Time in Office
G. Miller Chair US 2nd 2016 01 - 2018 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


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 how to define the degree of commutability which is required for a given reference material, taking into account its intended use and the intended use of the measurand.  The degree of commutability becomes the criteria used in the assessment process.
  • Propose standard terminology to describe the degree of commutability of a reference material, taking into account its intended use. 
  • Provide guidance to manufacturers and laboratories about what information should be provided by manufacturers in relation to the commutability of reference materials used to establish the calibration traceability of a measurement procedure. 
  • Advise IFCC Committees and Working Groups on how to assess the commutability of materials on which they are working.
  • Develop educational materials regarding commutability for manufacturers, laboratories and users of laboratory results. 

Current Projects

  • Recommendations for assessing commutability part 1: general experimental design
  • Recommendations for assessing commutability part 2: based on the difference in bias between a reference material and clinical samples
  • Recommendations for assessing commutability part 3: based on the calibration effectiveness of a reference material
  • Recommendations for assessing commutability part 4: validation of a replacement batch of a reference material
  • Recommendations for assessing commutability part 5: correction of an assigned value for a reference material for non-commutability with a measurement procedure


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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