Overview
ISO/TR 24666:2022 - Sports and recreational facilities - Probes for entrapment/entanglement on playground equipment - Collection of data is an ISO Technical Report compiling probes and gauges used worldwide to assess playground safety. The document gathers regional and national test probes/gauges, explains their historical origins and the rationale behind each probe’s shape and dimensions, and provides a reference inventory for identifying common hazards such as entrapment and entanglement on playground equipment and playspaces.
Key topics
- Scope and purpose: Collection of different probes/gauges used to assess entrapment/entanglement hazards and rationale for their existence.
- Anthropometrics and user scoping: Summary of how standards use child body-size data (e.g., 5th percentile to 95th percentile ranges) to define intended user groups and age bands for safety tests.
- International inventory: Cross-reference table of probes/gauges and test procedures from multiple standards and jurisdictions.
- Hazard categories: Informative annexes addressing specific risks, including:
- Completely bounded head entrapment
- Partially bounded head/neck entrapment
- Protrusion/impalement hazards
- Impalement from suspended components
- Crush and shear hazards
- Finger entrapment (gaps/openings)
- Clothing entanglement
- Toddler-specific hazard tests
- Rationale and history: Explanations of why particular probe dimensions and shapes were adopted in different regions.
Practical applications
ISO/TR 24666 is a practical reference for anyone involved in playground safety and compliance:
- Manufacturers & designers - use the probe inventory to design out entrapment/entanglement hazards during concept and prototype stages.
- Installers & assemblers - verify that installed equipment meets recognized probe-based safety checks.
- Owners, operators & maintenance teams - perform inspections and routine checks using standardized probes/gauges to reduce life‑threatening and debilitating injuries.
- Inspectors & testing laboratories - harmonize testing procedures and interpret differences between regional test probes.
- Procurement & risk assessors - compare product safety claims against internationally used probe tests.
Related standards
ISO/TR 24666 references and aligns with multiple national/regional standards used for playground safety, for example:
- ASTM F1487-21, ASTM F2373-11 (USA)
- CPSC Handbook for Public Playground Safety (USA)
- EN 1176-1:2017 (EU)
- AS 4685.1:2021 (Australia)
- CSA Z614-20 (Canada)
- JPFA-SP-S:2014 (Japan)
- SS 457:2017 (Singapore), MS 966:2017 (Malaysia)
ISO/TR 24666 is an informative resource - not a prescriptive test standard - but it is essential for harmonizing probes for entrapment, improving playground equipment safety, and supporting safer design, inspection, and maintenance practices.