Use of ISO Guides 25, 30, 31, 34, 35, and 9001 in re-engineering Bethlehem Steel Corporation's analytical chemistry reference materials program

1998 ◽  
Vol 3 (9) ◽  
pp. 367-372 ◽  
Author(s):  
D. A. Flinchbaugh ◽  
John M. Poholarz
Keyword(s):  
Analytical Chemistry ◽  
Reference Materials ◽  
Iso Guides

A framework for the application and use of reference materials in analytical chemistry

1996 ◽  
Vol 1 (6) ◽  
pp. 250-250 ◽  
Author(s):  
A.M.H. van der Veen ◽  
A. Alink ◽  
D. Verkuil ◽  
B. van der Lecq
Keyword(s):  
Analytical Chemistry ◽  
Reference Materials

scholarly journals Certification of Matrix Reference Materials in Chemical Measurement: A New Basis for Adopting a Consensus Value Derived from a Proficiency Test

2019 ◽  
Author(s):  
Michael Thompson ◽  
Philip Potts ◽  
Peter Webb
Keyword(s):  
Analytical Chemistry ◽  
Proficiency Testing ◽  
Reference Materials ◽  
Proficiency Test ◽  
Chemical Measurement ◽  
Proficiency Tests ◽  
Consensus Value ◽  
Iso Guide 35 ◽  
Consensus Values ◽  
Certified Values

<p>ISO Guide 35 (2017) specifies conditions for the certification of matrix reference materials via information from proficiency tests. Many scientists involved in the provision of proficiency tests for analytical chemistry have concluded that the Guide 35 conditions are <i>effectively</i> fulfilled by identifying certified values with properly-derived consensus values. However, the claim that such reference materials are ‘certified’ is likely to be challenged by traditional metrologists. This paper proposes to move beyond this unresolved situation to put certification <i>via</i> proficiency testing on an unassailable footing. The proposal therefore is not a questionable fulfilment of the Guide 35 conditions but an unrelated paradigm for certification.</p>

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