ISO 21569-2005 amd1-2013 PDF

Full title and description

ISO 21569:2005/Amd 1:2013 — Foodstuffs — Methods of analysis for the detection of genetically modified organisms and derived products — Qualitative nucleic acid based methods — Amendment 1. This document is an amendment to ISO 21569:2005 that provides updates and clarifications to qualitative nucleic-acid based analytical procedures used to detect GMOs and derived products, with emphasis on PCR-based detection and confirmation procedures.

Abstract

This amendment modifies and supplements ISO 21569:2005. It addresses procedural and performance details for the qualitative detection of genetically modified organisms (GMOs) in foodstuffs and derived products using nucleic-acid based methods (primarily PCR). The amendment clarifies requirements for target selection, controls, identity confirmation of amplified sequences and minimum performance criteria to help ensure reproducible and comparable results between laboratories.

General information

• Status: Published.
• Publication date: April 4, 2013 (Edition 1, 2013).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 67.050 — General methods of food products analysis / Food analysis.
• Edition / version: ISO 21569:2005/Amd 1:2013 — Amendment 1 to ISO 21569:2005 (Edition 1 of the amendment).
• Number of pages: 87 pages.

Scope

This amendment applies to ISO 21569:2005 and refines the horizontal, qualitative nucleic-acid based methods for detecting GMOs and their derived products in foodstuffs. It covers principles and minimum requirements for sampling-related nucleic-acid extraction, selection and verification of target sequences, amplification (principally PCR), use of positive and negative controls, interpretation and confirmation of results, and reporting to support comparable qualitative determinations across laboratories. The amendment is intended to be used alongside the main ISO 21569:2005 text.

Key topics and requirements

• Definitions and terminology for qualitative nucleic-acid based GMO detection.
• Guidance on sample preparation and nucleic acid extraction suitable for qualitative PCR analysis.
• Selection and verification of target DNA sequences and primers/probes for specific GMO events or constructs.
• Requirements for positive, negative and inhibition controls, and internal amplification controls.
• Criteria for confirming identity of amplified products (e.g., sequencing, probe hybridisation or melt characteristics).
• Minimum performance characteristics and validation recommendations to ensure sensitivity, specificity and reproducibility.
• Reporting requirements for qualitative results, including interpretation, limitations and quality assurance measures.

Typical use and users

Laboratories performing GMO screening and confirmation in food and feed (including enforcement and regulatory testing labs), food manufacturers performing in‑house quality control, accreditation bodies, method developers and researchers working on molecular detection methods for GMOs. The amendment is used to harmonize qualitative testing practice and to support inter-laboratory comparability.

Related standards

Related documents include the parent ISO 21569:2005 (qualitative nucleic-acid based methods) and other ISO standards covering quantitative nucleic-acid based methods (for example ISO 21570:2005 and its amendments for quantitative methods). Regional/adopted variants (e.g., UNE-EN ISO editions) and the developing ISO/DIS 21569-1 horizontal methods project are also related.

Keywords

GMO detection, qualitative PCR, nucleic acid methods, foodstuffs analysis, ISO 21569, amendment, target verification, controls, method validation, food safety.

FAQ

Q: What is this standard?

A: ISO 21569:2005/Amd 1:2013 is Amendment 1 (published April 4, 2013) to ISO 21569:2005. It provides modifications and clarifications to the original qualitative nucleic acid based methods for detecting GMOs in foodstuffs.

Q: What does it cover?

A: It updates procedural and performance details for qualitative nucleic-acid based detection of GMOs (principally PCR), including guidance on target selection, controls, confirmation of amplified products and minimum performance criteria to ensure reproducible, comparable qualitative results.

Q: Who typically uses it?

A: Accredited testing laboratories, regulatory enforcement labs, food industry quality/control laboratories, standards bodies and researchers implementing or validating qualitative GMO detection methods.

Q: Is it current or superseded?

A: The amendment was published in 2013 and applies to ISO 21569:2005. The parent standard was reviewed and reconfirmed on the ISO catalogue (last review/confirmation noted in 2020), and ISO information indicates a draft replacement (ISO/DIS 21569-1) was under development; users should check the ISO catalogue or national standards body for the absolute current status before relying on the standard for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is part of the ISO 21569 series dealing with qualitative nucleic-acid based methods for GMO detection (the amendment amends ISO 21569:2005). There are companion documents addressing quantitative methods (ISO 21570 series) and ongoing work to produce horizontal methods under ISO/DIS 21569-1.

Q: What are the key keywords?

A: GMO, foodstuffs, qualitative, nucleic acid, PCR, detection, confirmation, controls, ISO 21569, amendment 2013.