Underpinning the credibility ofmeasurement results :

How to combine skills of both OIV and international measurement infrastructure

“Oenology - Nutrition & Health - Methods of analysis” UnitJ. Claude Ruf, Ph.D. - OIV

IntergovernmentalOrganisation

Workshop on Comparability and traceability in food analysis18-19 November 2003 - Sevres (France)

1

Overview

The wine sector : its economic value The OIV : background information Two examples Collaborating with a metrology institute : how OIV profited Future outlook

2

the wine sector : its economic value Les échanges internationaux en 2002

(en parts de marché)

65%

21%14% 10%

71%75%79%76%

15%

0%

25%

50%

75%

100%

moy 81-85 moy 86-90 moy 91-95 moy 96-00 2002 prev.

« Hémisphère Sud »(Arg, ChiIi, AFS, Aust, NZ)

et USA

PECO et Maghreb

• France : 1er exportateurmondial (env. 15,4 Mio hl)• Italie (15 Mio hl ; - 3 %)• Espagne (9,5 Mio hl ; - 4,5 %)

Note O.I.V . de conjoncture mondiale (Patrick AIGRAIN - mars 2003)

en 2002

5 premiers paysexportateurs de l ’UE

(F, I, Sp, D, P)

Note O.I.V . de conjoncture mondiale

70,5%

17,8%

4,9%

4,0% 2,9%

20012001266,1 10 6 hl

EuropeAmericaAfricaAsiaOceania

0

2

4

6

8

10

12

Wine, must Olive oil wheat Total cereals

% of different products in the UE final agriculture production

Wine production

3

OIV - IRMM structuresOIV : Intergovernmental organisation 47 member states Missions: - to assist other international organisations especially those which carry out standardisation

activities; - to contribute to international harmonisation of

existing practices and standards and, as necessary, to the preparation of new international standardsIRMM : is part of the Directorate General - Joint Research Centre of the European Commission Missions: - The mission of the IRMM is to promote a common European measurement system in support of EU policies, especially health and consumer protection, environment, agriculture, internal market and industrial standards

4

A partnership based on strength ofOIV IRMM

• Expert in wine matters and wine methods

• links to wine sector institutes

• knowledgeable on those issues that are key to quality & safety

• Experts in reference measurements & materials

• links to metrology, accreditation, standardisation bodies

• knowledgeable on best practice in measurements across sectors

5

Common interest : Reliable measurement results

Measurements are used to make decisions- in trade - consumer protection

OIV goal : result from Chilean lab equivalent to that from France …

Creating confidence in measurements :- by showing that best practice is followed- by having a transparent system

6

OIV : long tradition in measurements

Sub-commission on Analysis (since 1935 mod.1954)

OIV produces standardised methods (compendium) OIV members perform validation of these methods

on interlaboratory tests Strong link with networks of field laboratories,

national regulation systems, and with international organisation (e.g. Codex Alimentarius, CEN, ISO, AOAC, IAM )

7

Measurement result quality : some key issues

Quality of a result : responsibility of individual laboratories in member states

Laboratory competence assessment : OIV stimulates use of accreditation

How equivalent is measurement capability across the world ? Diffic ult to assess for OIV

8

Example 1 :The European project REFMAT

OBJECTIVES:

Establishing field reference materials for the authentication of food and beverages by isotopic analysesD and 18O of water13C of sugar and ethanol Certification of 5 Reference Materials suitable for isotopic analysis of wine, alcohol, fruit juices and sugars.

Improve the comparison of isotopic determinations in enforcement laboratoriesfunded by the DG Research of the European Commission (SMT3 - CT96 – 2086).

9

Example 2 :IMEP-16

41st Meeting of the OIV sub-

commission of methods of analysis

Presentation of the International measurement Evaluation Programme (IMEP-16) concerning lead in wine

- 160 laboratories, 40 countries - Lead concentration: 27 0.33 µg/l see http//www.irmm.jrc.be/imep

aim : global assessment measurement capability

10

Assessing the quality of results of measurements : IMEP-16

13.59

16.31

19.03

21.74

24.46

27.18

29.90

32.62

35.33

38.05

40.77

-50

-40

-30

-20

-10

0

10

20

30

40

50

Use of an official method

No use of an official method

No information

Pb

Results from all participants in relation to the use of an official analytical method

IMEP- 16: Pb in wineCertified value : 27.18 ± 0.33 µg·L -1 [U=k·uc (k =2)]

Use of an official method 3

No use of an official method 7

No info 1

Values below -50%

No use of an official method 5

'Less than' value

Values above 50%

Use of an official method 6

No use of an official method 20

No info 1

official method 2676/90

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Assessing the quality of results of measurements : IMEP-16

13.6

16.3

19.0

21.7

24.5

27.2

29.9

32.6

35.3

38.1

40.8

-50

-40

-30

-20

-10

0

10

20

30

40

50

Pb amount content

Results from all participants with indication of the results of the OIVV members

IMEP- 16: Pb in wineCertified value : 27.18 ± 0. 33 µg·L-1 [U =k ·u c (k =2)]

5 'less than' values11 values

below -50%

28 valuesabove 50%

OIVV members

12

BIPM-CCQM pilot study 12

0.066

0.088

0.110

0.132

0.154

0.176

0.198

c

1

0-9 m

ol·g

-1

CCQM-P12 : Pb in wine

IRMM certified value(corresponds to IMEP-16 certified value)

Results from BAM, Germany; CENAM, Mexico; CSIR-NML, South-Africa; EMPA, Switzerland; IRMM, European Commission; KRISS, Korea; LGC, United Kingdom; LNE, France; NARL, Australia; NIMC, Japan; NIST, United States of America; NRCCRM, China; PTB, Germany; VNIIM, Russian Federation

±50%

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Conclusions :how did OIV profit ?

Link with a community previously unknown, opportunities for symbiosis

Reference Measurements and Materials is not OIV core business : profit from core business of others

Exposed to best practice : designation of laboratories (e.g. control, inspection, reference laboratories) should ideally be backed up by demonstrated competence

15

Conclusion : further prospects

Scope for further strengthening link with metrology infrastructure via appropriate projects– interlaboratory comparisons– appropriate wine CRMs– appropriate training of laboratories and

end-users (e.g. enforcers, regulators)

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