Willie E. May Undersecretary of Commerce for Standards and - - PowerPoint PPT Presentation

CIPM MRA Review: A view from the US

Willie E. May

Undersecretary of Commerce for Standards and Technology &

Director of NIST

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From NIST’s perspective: The CIPM MRA should be a means for:

• NMIs to document and vet the capabilities they

maintain to underpin the Measurement Services they provide to Customers.

• Customers to assess the degree of comparability of a

given service across the NMI/DI community. NIST’s Position on the Future of the CIPM MRA

Context

NIST is the National Metrology Institute for the US – one of the original signatories of the CIPM MRA

• The US currently has no Designated Institutes.

We:

• have active participants in all CIPM Consultative Committees
• are a member of the SIM Regional Metrology Organization (RMO)
• currently have 2028 CMCs listed in the KCDB
• have participated in ~ 380 KCs; coordinating ~ 80
• have participated in ~ 70 supplementary comparisons (through SIM);

coordinating ~ 25

• provide following Measurement Services:

– Standard Reference Materials:

• ~ 1,300 products available
• ~ 30,000 units sold per year

– Calibration tests: ~ 18,000 tests per year – Standard Reference Data

• ~ 100 different types
• ~ 6,000 units sold per year
• ~ 226 million data downloads per year

– Laboratory accreditations: ~ 800 accreditations of testing and calibrations laboratories per year via NIST NVLAP

Documented degree of equivalence of measurement capabilities (that could be used to identify collaborators in delivery of NIST measurement services)

Comparison of value- assigned CRMs for Creatinine in Serum that could be used to better manage NIST SRM renewal activities

C E N A M K R I S S L G C N I M N I S T P T B

DMR 263a 111 01 01A 111 01 03A 111 01 04A 111 01 02A ERM DA252a ERM DA251a ERM DA250a ERM DA253a Creatinine 1 Creatinine 2 SRM 909b I SRM 967a I SRM 909b II SRM 967a II RELA 1/05 KS A RELA 1/05 KS B

• 10
• 5

5 10

Relative Degeres of Equivalence, %

CCQM-K80

We have leveraged our Participation in CIPM MRA Activities to better serve our customers

EU Korea UK US Germany

CCT K7 – Triple Point of Water Comparison

Measurement science was advanced through the CCT-K7 comparison

• Results were in less agreement

than anticipated

• Cause identified as variations in

isotopic composition of the water

• New methodology developed that

improved agreement by 40%

−200 −100 100 200

BIPM BNM CEM CENAM CSIR CSIRO IMGC IPQ KRISS MSL NIM NIST NMIJ NMi-VSL NPL NRC PTB SMU SPRING UME VNIIM (NMI - mean) / µK

International acceptance of commercial standards enabled by key comparison

• NIST transferred measurement

technology to Fluke

• Enabled Fluke to be a world leader in

supplying a critical commercialized temperature standard Leveraging NIST Participation in CIPM MRA Activities to better serve our customers

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• NMIs should always be major beneficiaries of the CIPM MRA. They provide the

resources (CMCs, Key Comparisons of capabilities, maintenance and reviews of Quality Systems etc).

• The business case for NIST to resource our continued involvement in the MRA is that it

provides U.S. Customers a means for objectively assessing the quality and comparability of measurement and calibration services provided by other NMIs.

• We recognize the benefits of the data in the KCDB to Accrediting Bodies, but these

benefits should be ancillary in intent! – The NMIs should work to ensure that while these ancillary benefits are freely available to everyone, the needs of these ancillary beneficiaries should not be the major drivers of CIPM MRA activities. – The NMIs (taken collectively) cannot afford to support any additional work that would lead to expanding the use of the CIPM MRA for purposes of organizations

• ther than those developed for the NMIs and their customers.
• The KCDB should not be a complete documentation of all of the capabilities of

participating NMIs; but rather those capabilities that underpin the delivery of services

• ffered to customers on a regular basis.
• If the CIPM MRA is effectively designed, implemented, and maintained for the NMIs, it

will meet most of the relevant needs of other users.

NIST observations on the future implementation of the MRA:

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MRA redesign should achieve the following Goals

• must support the international metrology needs of all

NMIs (large, medium, small; well established, developing).

• require flat or reduced level of effort and investment

by the NMIs to support the CIPM MRA.

• use simplified and streamlined processes for

implementing and maintaining the various aspects of the CIPM MRA.

• provide easier and seamless access to and the

interpretation of information developed under the CIPM MRA (such as calibration and measurement capabilities and key comparison results).

• Must maintain Quality of Data in Database

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Recommendations

• CMCs should be only those that underpin services that are

routinely offered to customers and are publically listed (e.g. NMI catalogs, websites, etc.).

• The review processes for CMC and quality systems should be

simplified while maintaining rigor sufficient to maintain the quality of the information in the KCDB.

• Each Consultative Committee should identify and document a

well-considered reduced set of key comparisons that sufficiently define a level of competence in a given technical

• area. These comparisons must be efficiently and effectively

designed and implemented to achieve the goals of the CIPM MRA with reduced burden on the NMIs.

• RMOs should increase their focus on comparisons and other

learning activities that demonstrate/improve the capabilities

• f developing NMIs.