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View Paper |
Session Topic: 5E, Chemical Metrology |
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Paper Title: Traceability and Practice in Metrology in Chemistry |
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Date & Time: TUESDAY, August 6, 2002 |
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2:30 - 4:00pm PARALLEL SESSIONS - SESSION 5 |
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Speaker: Yoshito Mitani |
Email: ymitani@cenam.mx |
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Traceability in chemical metrology has been discussed and given scientific bases for the understanding of primary methods since the formation of CCQM-CIPM. In spite of the importance at this level, NMI has still a serious task in each country to establish traceable chain for support of so diversified field measurements, which should cover all principles of chemical analysis and applicable for all kinds of material and substances. Description is made on an important effort done in the development of reference materials, and consequently in the comparison exercises with other NMIs, since it is a first step for CENAM to establish comparable measurement and calibration capability. An additional program is presented to invite reference materials users to convert into producers of reference materials under the program of MRTC. This program has a similar philosophy of NTRM of NIST, and looks for the efficient production and certification of CRM for the most demanded fields. Additional considerations on the strategy for establishing traceability is discussed in order to achieve harmonization of traceability systems among countries, with particular considerations to the accreditation of analytical laboratories based on the competence. |
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