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WWW.AOAC.ORG
301.924.7077
SUNDAY, SEPTEMBER 24, 2017
1:00 PM – 2:30 PM
TDLM Training Session: Traceability — An Important
Requirement for ISO 17025
This workshop will include a discussion of traceability followed by an
interactive exercise in which each participant identifies traceability
components in an analytical procedure.
Metrological traceability is a key element in the mutual recognition
of calibration and testing results. ISO 17025 requires accredited
laboratories to have a program in place to ensure that calibrations and
measurements made by the laboratory are traceable to the International
System of Units (SI) or to appropriate measurement standards where SI
units cannot be realized. Many believe that using calibrated balances,
volumetric glass ware, timers, thermometers, etc, is enough to fulfil
traceability requirements. Contrary to this, it has to be appreciated
that metrological traceability is just one of several determinants for
producing valid and comparable measurement results; the others are
proper method validation and a system of measures which ensures
that analytical processes are under control. References to commonly
accepted standards (measurement scales, such as the SI, reference
materials, artefacts, reference methods) are of crucial importance for
setting up traceability chains or for confirming metrological traceability.
Such references must be chosen with care and can obviously not be
restricted to physical input quantities (mass, volume, temperature,
etc). Contemporary analytical chemistry relies to a large extent on
measurement principles requiring some form of calibration to relate the
signal generated by an instrument to a certain amount of substance;
therefore, calibration materials that are well characterized with respect
to their identity and purity very often form the starting point of a
traceability chain.
CO-CHAIR:
Jane Weitzel,
Consultant
CO-CHAIR:
Franz Ulberth,
European Commission – Joint Research Centre
•
Franz Ulberth,
European Commission – Joint Research Centre
Metrological Traceability of Analytical Results: Basic Concepts
and Principles
•
Jane Weitzel,
Consultant
Activity: Identify Traceability Requirements
3:00 PM – 4:30 PM
TDRM Workshop: New ISO Series of Documents for Reference
Material Producers
For the first time ever, there is a coordinated, comprehensive series
of documents from ISO containing requirements and guidance on
production of reference materials. This includes all types of reference
materials, not just Certified Reference Materials. These documents will
form the basis of international efforts for increased availability of RMs,
especially matrix RMs.
Requirements and guidance cover all aspects of RM production,
oversight, and use; public (i.e., NMI) and commercial production;
traditional chemical calibrators and matrix materials with contaminants
at levels of interest; and quantitative and qualitative property values,
including RMs for identity, presence or absence, and purity. The
workshop will offer brief perspectives from a national metrology institute
and ISO REMCO member, an accredited RM producer, a multinational
laboratory user, and an accreditation body.
CO-CHAIR:
Daniel Tholen,
Dan Tholen Statistical Consulting
CO-CHAIR:
Pearse McCarron,
National Research Council Canada
•
Michael Winchester,
National Institute of Standards and Technology
Perspective of an ISO REMCO Member Body
•
Mark Hammersla,
NSI Lab Solutions
Perspective of an Accredited Commercial RM Producer — What Has
Changed for RM Producers?
•
Greg Jaudzens,
Nestlé Quality Assurance Center
Perspective of an RM User: What has Changed for Users?
•
Ashly Carter,
A2LA — American Association for Laboratory
Accreditation
Perspective of an ISO REMCO Member Body: Why Revise all
Documents at the Same Time?
SCIENTIFIC SESSIONS