Overview
EN ISO 24276:2006 - "Foodstuffs - Methods of analysis for the detection of genetically modified organisms and derived products - General requirements and definitions" is a CEN-adopted ISO standard that defines the general framework for analysing genetically modified organisms (GMOs) and derived products in food. It explains how to use and relate specific method standards for sampling, nucleic acid extraction, qualitative and quantitative nucleic acid analysis, and protein-based methods. The standard focuses primarily on PCR-based approaches but is technology-neutral enough to accommodate future methods.
Key topics and technical requirements
- Scope and purpose
- Provides general definitions, laboratory requirements, method validation principles and reporting guidelines for GMO analysis in foodstuffs.
- Core terminology
- Standardised terms such as sensitivity, specificity, limit of detection (LOD), limit of quantitation (LOQ), accuracy, trueness, precision, repeatability, and reproducibility.
- Method relationships and selection
- Guidance on selecting and combining standards for sampling, DNA extraction, qualitative and quantitative analysis, and protein detection.
- Laboratory organisation and controls
- Requirements for laboratory set‑up, use of positive/negative/blank controls, contamination prevention and quality assurance.
- Validation and performance characteristics
- Criteria for demonstrating method performance (LOD/LOQ, calibration, precision) through collaborative trials or appropriate validation studies.
- Interpretation and reporting
- Rules for interpreting positive, negative or ambiguous results, and minimum content for test reports to ensure traceability and comparability.
Practical applications and users
EN ISO 24276:2006 is designed for:
- Food testing laboratories implementing GMO detection workflows.
- Regulatory authorities requiring harmonised reporting and method validation for compliance testing.
- Method developers and kit manufacturers designing or validating nucleic acid and protein assays for GMO detection.
- Quality managers and laboratory accreditation bodies establishing procedures, controls and performance criteria.
- Researchers and environmental testing groups analysing seeds, feed and plant samples from the environment - the standard, while established for food matrices, can be applied to other matrices.
Practical use cases include routine screening, confirmatory testing, quantitative determination of GMO content, proficiency testing and forensic traceability.
Related standards
- EN/TS 21568 - Sampling strategies for GMOs
- ISO 21571 - Nucleic acid extraction
- ISO 21569 - Qualitative nucleic acid based methods (PCR)
- ISO 21570 - Quantitative nucleic acid based methods
- ISO 21572 - Protein based methods (ELISA)
EN ISO 24276:2006 ensures consistent terminology, validation expectations and reporting practices across GMO detection workflows, supporting reliable, comparable results for food safety and regulatory decision-making.
