Overview
ISO/TR 16197:2014 - Nanotechnologies - is a Technical Report that compiles and describes toxicological screening methods for manufactured nanomaterials. It focuses on relatively simple, cost‑effective in vitro and in vivo screening assays that provide rapid indications of potential human health and environmental hazards. The report is organized into assays related to humans (cell‑based and limited animal tests) and assays related to the environment (fate, degradation, biopersistence and bioaccumulation). It is intended for preliminary assessment, early decision‑making in R&D and product development, and as part of tiered testing strategies.
Key topics and requirements
- Scope and purpose: Defines screening tests as simple, inexpensive, rapid assays that indicate potential adverse outcomes for human health or the environment; not a replacement for full regulatory testing.
- Methods covered: Compilation and description of relevant in vitro and in vivo toxicological screening approaches and environmental screening assays (fate, transformation, bioaccumulation).
- Supporting elements:
- Definitions and terminology (referencing ISO/TS 27687 and ISO/TS 80004‑1).
- Guidance on positive and negative controls and repeatability expectations for screening assays.
- Discussion of dosing considerations and relationships to sample preparation (linked to ISO/DTR 16196).
- Role of screening within tiered and integrated testing strategies.
- Limitations highlighted: Screening assays may lack validated human predictability, can be complex to extrapolate dose–response to human exposure, and are not a substitute for confirmatory, full‑scale toxicological testing.
Practical applications and users
ISO/TR 16197:2014 is useful for:
- Materials scientists and nanomaterial developers prioritizing safer formulations during R&D.
- Toxicologists designing high‑throughput screening workflows to triage materials.
- Product safety managers and lab safety officers assessing early hazard signals.
- Regulatory and compliance teams seeking documented screening approaches as part of a larger risk assessment strategy.
Practical uses include early decision‑making, rapid feedback on potential toxicological/safety concerns, prioritization for further testing, and preliminary ecotoxicological screening.
Related standards
- ISO/DTR 16196 - sample preparation and dosing methods for manufactured NMs
- ISO/TR 13014 - guidance on physico‑chemical characterization for toxicological assessment
- ISO/TR 13121 - risk communication and tiered toxicity testing approaches
- ISO 10993‑18 and ISO 14971 - material chemical characterization and risk analysis for medical devices
- OECD guidance - for full‑scale toxicological assessment and standardized testing
ISO/TR 16197:2014 is a practical reference for integrating toxicological screening into nanomaterial safety evaluation workflows and supports high‑throughput, informed decision‑making in nanotechnology development.