Overview - ISO 18510-1:2025 (Measurement of radioactivity in the environment - Bioindicators - Part 1)
ISO 18510-1:2025 provides general guidance for using bioindicators to measure radioactivity in the environment. It defines the overarching principles for a representative sampling strategy, the collection, conditioning and transport of biological samples, and the pre-treatment operations required before laboratory analysis. The standard applies to biological matrices in routine environmental monitoring and is explicitly not intended for accident or post‑accident situations.
Key topics and technical requirements
The document establishes practical requirements and topics including:
- Sampling strategy and programme design - planning, selection of sampling points and categorization to ensure representative, fit-for-purpose data.
- Criteria for selection of bioindicators - factors influencing which organisms best reflect environmental radionuclide levels (e.g., accumulation and retention characteristics).
- Sample collection and equipment - guidance on collection methods, instruments, and optimal sample mass.
- Constitution, identification and record keeping - requirements for sample composition, labeling and metadata capture.
- Preservation, transport and laboratory receipt - preserving sample integrity during transport and formal procedures on receipt by testing laboratories.
- Pre-treatment operations - dehydration, grinding and homogenization, calcination and storage steps to prepare samples for radioactivity measurement.
- Safety aspects - handling and radiological protection considerations for sampling and pre-treatment activities.
- Quality context - alignment with laboratory quality systems (e.g., ISO/IEC 17025) and the need for traceable, comparable results.
(See normative references such as ISO 11465 for relevant test methods.)
Practical applications and who uses this standard
ISO 18510-1:2025 is intended for organizations and professionals involved in environmental radioactivity monitoring, including:
- Environmental and radiological monitoring teams at nuclear sites, research institutions and regulatory bodies.
- Sampling organisations and field technicians responsible for collecting biological samples (bioindicators).
- Testing laboratories that perform radionuclide measurements and seek consistent pre‑analytical procedures.
- Public health authorities and local regulators wanting comparable, fit-for-purpose environmental data.
- Industry operators managing naturally occurring radioactive materials (NORM) or routine discharges.
Using ISO 18510-1 helps ensure representative sampling, reproducible pre-treatment, and data comparable across time and between laboratories - supporting surveillance, compliance and public‑health decisions.
Related standards
- ISO/IEC 17025 (laboratory competence and quality management)
- ISO 11465 (soil dry matter and water content - referenced for sample moisture determination)
- Other parts of the ISO 18510 series (forthcoming parts on terrestrial, freshwater and marine bioindicators)
Keywords: ISO 18510-1:2025, bioindicators, measurement of radioactivity, sampling strategy, pre-treatment, environmental monitoring, radioactivity in the environment.
