international standardsmethods.aaccnet.org/hidden/croplife/presentations... · 2015. 11. 4. · •...
TRANSCRIPT
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Slide 1
International Standards
Creating CONFIDENCE for the Peoples and Nations
of the World
Detection Methods and Reference Materials Symposium – October 2015
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Definition of a Standard
• A published specification that establishes a common language, and contains a technical specification or other precise criteria and is designed to be used consistently, as a rule, a guideline, or a definition
(British Standards Institution)
Slide 2 Detection Methods and Reference Materials Symposium – October 2015
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Examples of Standards
• A set of specifications (criteria) that sellers and buyers agree to; usually a mix of physical and chemical parameters
• Methods of analysis (technology and procedures) used to determine if the specifications have been met
• Buyers and Sellers use standards to facilitate equitable trade
Slide 3 Detection Methods and Reference Materials Symposium – October 2015
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Standards cover many activities
• Standards cover a vast array of subjects and topics.
• Include products and services of almost every description.
• Some libraries contain over half a million standards!
Slide 4 Detection Methods and Reference Materials Symposium – October 2015
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Slide 5
Local Customs and Consumer Preferences
Laws and
Regulations
Private Sector
Competitive Strategies
Enforcement Capacity
Standards As Applied
after Steven Jaffee - International Trade Department, World Bank 2005
Detection Methods and Reference Materials Symposium – October 2015
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International and Regional Standards are set by….
• Codex Alimentarius Commission • International – ISO
– Regional – CEN, PASC, COPANT, ACCSQ, NASCF, etc. – National – SAC, JISC, ANSI, IRAM, UNIT, BSA, etc.
• Scientific organisations – AACCI, AOAC, AOCS, ICC (SDOs)
• Traders – FOFSA, etc. • National (or supranational) bodies
Slide 6 Detection Methods and Reference Materials Symposium – October 2015
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AACC, AOCS and AOAC have Official Methods programs
• 11-10 -01 Bt Cry1Ab-Modified Corn in Corn Flour - ELISA Method • 11-20 -01 StarLink Corn in Corn Flour and Corn Meal - ELISA Method • 11-21-01 ELISA Method for StarLink Corn in Corn Flour and Corn
Meal • 11-30 -01 PCR method MON 810 Corn in Corn Flour by Real-Time
Polymerase Chain Reaction
• 1 PCR GM method included to determine characteristics and logistics.
• No other PCR methods in AACC. BAX methods in AOAC.
Detection Methods and Reference Materials Symposium – October 2015 Slide 7
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Codex Alimentarius
• Commission created by FAO and WHO to develop food standards, guidelines and codes of practice
• Codex is a government led organization • Established 1963
Slide 8 Detection Methods and Reference Materials Symposium – October 2015
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Codex Committee on Methods and Sampling (CCMAS) • Methods of analysis and sampling and
quality assurance systems for laboratories
• Reference Methods of Analysis and Sampling
• Procedures, protocols, guides for the assessment of food laboratory proficiency
Slide 9 Detection Methods and Reference Materials Symposium – October 2015
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Codex has Guidelines Relevant to Ag. Biotech
Slide 10
Reference Title CAC/GL 27-1997 Guidelines for the Assessment of the Competence
of Testing Laboratories Involved in the Import and Export Control of Foods
2006
CAC/GL 50-2004 General guidelines on sampling 2004
CAC/GL 45-2003 Annex III
Guideline for the Conduct of Food Safety Assessment of Foods Derived from Recombinant-DNA Plants (LLP)
2008
CAC/GL 74-2010 Guidelines on performance criteria and validation of methods for detection, identification and quantification of specific DNA sequences and specific proteins in foods
2010
CAC/GL 54-2004 Guidelines on Measurement Uncertainty 2011 (Annex)
Detection Methods and Reference Materials Symposium – October 2015
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Codex approach to methods
• Focused on performance requirements,
rather than specific methods • This is the case for all methods, not just
methods for DNA and Protein identification
• Government driven
Detection Methods and Reference Materials Symposium – October 2015 Slide 11
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• Established in 1947 • Is a Non-governmental organization (NGO) that
has a membership made up of standard institutions advised by panels of experts in each country.
• Is network of the national standards institutes of 192 countries, one member per country
• Has published more than 19 500 International Standards
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ISO: International Standards Organization
Detection Methods and Reference Materials Symposium – October 2015
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ISO Member Countries
Detection Methods and Reference Materials Symposium – October 2015 Slide 13
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ISO and Food Biotechnology
• TC 34 Food products (75 countries + 60 observing) – TC 34/SC 16 Biomolecular testing (25 + 10)
• TC 47 Chemistry • TC 48 Laboratory equipment • TC 69 Applications of statistical methods • TC 93 Starch (including derivatives and by-products) • TC 134 Fertilizers and soil conditioners • TC 176 Quality management and quality assurance • TC 276 Biotechnology • ISO/REMCO Committee on reference materials
Detection Methods and Reference Materials Symposium – October 2015 Slide 14
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TC 34/SC 16 - Horizontal methods for molecular biomarker analysis
Secretariat: USA (ANSI) Participating Countries (25) • Argentina (IRAM) • Austria (ASI) • Belgium (NBN) • Canada (SCC) • Chile (INN) • China (SAC) • Denmark (DS) • Egypt (EOS) • France (AFNOR) • Germany (DIN) • India (BIS) • Iran, Islamic Republic of (ISIRI) • Ireland (NSAI) • Jamaica (BSJ) • Japan (JISC) • Korea, Republic of (KATS) • Namibia (NSI) • Netherlands (NEN) • Russian Federation (GOST R)
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Participating Countries (continued) • Slovenia (SIST) • Sweden (SIS) • Switzerland (SNV) • Thailand (TISI) • United Kingdom (BSI) • United States (ANSI) Observing Countries(10) • Croatia (HZN) • Cyprus (CYS) • Czech Republic (UNMZ) • Hungary (MSZT) • Italy (UNI) • Poland (PKN) • Romania (ASRO) • Serbia (ISS) • Slovakia (SOSMT) • Spain (AENOR)
Detection Methods and Reference Materials Symposium – October 2015
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ISO TC 34/SC 16
ISO committees in liaison: • ISO/TC 34/SC 9 • ISO/TC 69/SC 6 • ISO/TC 93 • ISO/TC 212 • ISO/TC 276
Organizations in liaison: • AACC • AOCS • EURL-GMFF • ECOS (Europe) • EPPO • IPPC
Detection Methods and Reference Materials Symposium – October 2015 Slide 16
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Methods under ISO TC 34/SC 16 • ISO 24276:2006/Amd 1:2013 General requirements and definitions
• ISO 21569:2005/Amd 1:2013 Qualitative nucleic acid based methods • ISO/TS 21569-2:2012 Part 2: Construct-specific real-time PCR method
for detection of event FP967 in linseed and linseed products • ISO/TS 21569-3:2015 Part 3: Construct-specific real-time PCR method
for detection of P35S-pat-sequence for screening genetically modified organisms
• ISO 21570:2005/Amd 1:2013 Quantitative nucleic acid based methods
• ISO 21571:2005/Amd 1:2013 Nucleic acid extraction
• ISO 21572:2013 Protein-based methods
Detection Methods and Reference Materials Symposium – October 2015 Slide 17
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ISO approach to methods
• General Standards focused on performance requirements
• Specific methods have been and can be appended to these methods guidelines
• Country driven (all stakeholders)
Detection Methods and Reference Materials Symposium – October 2015 Slide 18
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Standardization is Coordinated
CEN
AACC
ISO
Method Development – Laboratory Validation
EURL
AOAC AOCS
Collaborative (Ring) Trials
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Codex and ISO standards for PCR methods
Codex CAC/GL 74-2010 ISO 24276
Quantitative Qualitative Quantitative 21570 Qualitative
21569 Nucleic acid
21571
Trueness X Precision (RSDr) X Repeatability (RSDR) X Robustness X X LOD X X X X LOQ X X Specificity/Selectivity X Applicability / practicability X Dynamic Range X Sensitivity X Validation X
Detection Methods and Reference Materials Symposium – October 2015 Slide 20
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Codex and ISO Performance Requirements for PCR Methods
Codex CAC/GL 74-2010 ISO 24276
Quantitative Qualitative Quantitative 21570 Qualitative
21569 Nucleic acid
21571
Specific Criteria Size of amplicon X Efficiency X Primers X X Reference material X X X Number of cycles X Temperatures (primers) X Amount of DNA X Quality of DNA X X Controls X X Replicates X X Agreement of replicates X Confirmation X Endogenous (taxon) reference X X X Calibration X Reporting X X X
Detection Methods and Reference Materials Symposium – October 2015 Slide 21
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Sampling of Seed and Grain is Done to International Standards
ISTA sampling standards for seed
ISO24333, ISO542 Photos courtesy of USDA, Bayer.
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Laboratory Accreditation • Laboratories may be accredited under official accreditation
schemes – ISO (17025) – not equally applied – ISTA – National schemes (e.g. COFRAC, UKAS, CNAL, QUACERT, SAC-
SINGLAS)
• Accredited laboratories validate/verify methods for use in their own laboratory and participate in proficiency tests (check sample programs organized by e.g. ISTA, GIPSA, FAPAS, AOCS, AACC...) as part of the accreditation maintenance scheme
• Calibrate pipettes, instruments (temps) etc.
• Use Rules, Methods and Procedures
• Identify and Correct Deficiencies
Slide 23 Detection Methods and Reference Materials Symposium – October 2015
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Standards can contribute to Harmonisation by providing guidance
On • Method development best practices • Laboratory best practices • Validation of methods • Proficiency testing • Interpretation of Results • and by providing Analytical methods
Detection Methods and Reference Materials Symposium – October 2015 Slide 24
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Slide 25
Local Customs and Consumer Preferences
Laws and
Regulations
Private Sector
Competitive Strategies
Enforcement Capacity
Standards As Applied
after Steven Jaffee - International Trade Department, World Bank 2005
Detection Methods and Reference Materials Symposium – October 2015
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Standards help Harmonisation
• Guidance on operation of laboratories • Criteria for method performance • How to determine if methods are fit for
purpose • Measurement Uncertainty • Methods Goal of standards -> methods performing to the same criteria, and with the same results, globally
Detection Methods and Reference Materials Symposium – October 2015 Slide 26