Internationally accepted framework for metrology

Andy Henson BIPM

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The BIPM – Bureau International des Poids et Measures

BIPM – Bureau International des Poids and Mesures

• representing the worldwide measurement community

• centre for scientific and technical collaboration

• coordinator of the worldwide measurement system

CIPM – Comité International des Poids et Mesures

Eighteen individuals of different nationalities elected by the CGPM.

Membership of the BIPM provides states with the opportunity • To gain global recognition and acceptance for measurement capabilities (CIPM MRA) • To participate in the structures that support and develop the SI • To be active in scientific and technical forums that support the development of measurement capability

Consultative Committees (CCs)

CCAUV – Acoustics, US & Vibration

CCEM – Electricity & Magnetism

CCL – Length

CCM – Mass and related

CCPR – Photometry & Radiometry

CCQM – Amount of substance

CCRI – Ionizing Radiation

CCT – Thermometry

CCTF – Time & Frequency

CCU - Units

CGPM – Conférence Générale des Poids et Mesures

Official representatives of Member States.

Established in 1875 when 17 States signed the Metre Convention. Currently there are 58 Member States of the BIPM, and 41 Associates of the General Conference.

– the intergovernmental organization through which Member States act together on matters related to measurement science and measurement standards.

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Global “Quality Infrastructure”

National Standards Body

National Metrology Institute

National Accreditation Body

BENEFITS

AUTHORITIES, CONSUMERS, AND GENERAL PUBLIC Source: World Bank

• Enhanced product quality and compatibility

• Enhanced safety and health

• Decreased environmental impact

• Increased trade opportunities

• Facilitating innovations to the market place

definition of units (as required in standards)

accreditation body standards

certification bodies

inspection bodies

testing laboratories

calibration laboratories

certification body

standards

inspection body

standards

testing laboratory standards

calibration laboratory standards

calibration certificate required for laboratory accreditation

ENTERPRISES

standards required for certification certification

inspection certificate test report

calibration certificate

• Metrology is a key part of the global “quality infrastructure” that underpins world trade.

• The work of the NMIs is made visible and transparent through the CIPM-MRA signed in 1999, which,

• provides the technical basis for the worldwide acceptance of national measurement standards and calibration and measurement certificates from NMIs.

• The work of the CIPM MRA now goes far beyond

matters of trade to cover climate change, healthcare etc.

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The CIPM Mutual Recognition Arrangement

Objectives:

• to establish the degree of equivalence of national measurement standards maintained by NMIs

• to provide for the mutual recognition of calibration and measurement certificates issued by NMIs

Participation

• 98 National Metrology Institutes ‒ 57 Member States ‒ 41 Associates

• 4 International organizations (ESA, IAEA, IRMM, WMO)

• plus 156 Designated Institutes

Total: 258 Institutes http://kcdb.bipm.org/

Science based, peer reviewed, public data

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Joint BIPM, OIML, ILAC and ISO declaration on measurement traceability

http://www.bipm.org/en/worldwide-metrology/bipm-oiml-ilac-iso_joint_declaration.html

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Joint BIPM, OIML, ILAC and ISO declaration on measurement traceability

The BIPM, OIML, ILAC, and ISO endorse the following recommendations:

in order to be able to rely on their international acceptability, calibrations should be performed

• in National Metrology Institutes who should normally be signatories to the CIPM MRA and have CMCs published in the relevant areas of the KCDB or

• in laboratories accredited by accreditation bodies which are signatories to the ILAC Arrangement;

measurement uncertainty should follow the principles established in the GUM;

the results of the measurements made in accredited laboratories should be traceable to the SI;

NMIs providing traceability for accredited laboratories should normally be signatories to the CIPM MRA and have CMCs published in the relevant areas of the KCDB;

within the OIML’s MAA, accreditation should be provided by bodies which are signatories to the ILAC Arrangement and the above policies on traceability to the SI should be followed;

The above principles should be used whenever there is a need to demonstrate metrological traceability for international acceptability.

(http://www.bipm.org/utils/common/pdf/BIPM-OIML-ILAC-ISO_joint_declaration_2011.pdf)

Use of this Declaration

These principles underpin a world measurement system which provides a robust, internationally accepted framework within which users can have confidence in the validity and acceptability of measurements results. BIPM, OIML, ILAC and ISO strongly urge legislators and regulators to refer to the Arrangements described earlier in this Declaration and also to accept measurement results made within this system, thereby helping avoid technical barriers to trade. We also invite interested parties to endorse these principles and to make use of them in their own work.

Option 1) from ILAC P10:01/2013 “An NMI whose service is suitable for the intended need and is covered by the CIPM MRA. Services covered by the CIPM MRA can be viewed in Appendix C of the BIPM KCDB which includes the range and uncertainty for each listed service.”

Traceability can be taken directly from the NMIs, but often is implicit by calling up accredited laboratory services

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CIPM MRA: Good regulatory practice

Federal Aviation Administration accepts CIPM MRA for aircraft repair and inspection procedures

Source: http://fsims.faa.gov/PICDetail.aspx?docId=8900.1,Vol.6,Ch9,Sec9_SAS

“The CIPM Mutual Recognition Arrangement (MRA) signatories are acceptable to the FAA …”

www.bipm.org

Effective regulation and regulatory compliance depends on getting the measurements right… …wherever they are made! Thank you

Andy Henson

andy.henson@bipm.org