Overview
ISO/TR 14646:2007 is a Technical Report that reviews ISO work (to November 2005) on defining a standardized side impact test method for child restraint systems (CRS). Rather than specifying a normative requirement, it summarises background data, full‑scale and component crash test experience, regional side‑impact protocols, and draft ISO test procedures (including rearward‑facing and forward‑facing CRS drafts). The report provides a foundation for further development of an international standard to assess child protection in lateral collisions.
Key topics
- Accident statistics and injury patterns - analysis showing higher severity for children on the struck side, with head, neck and chest prioritized for protection; comparisons of rear‑facing vs forward‑facing outcomes.
- Regional car side‑impact methods - summaries of test protocols used worldwide (examples in the report):
- ECE R95 / Euro‑NCAP (MDB impact, 50 km/h)
- FMVSS 214 (crabbed barrier, 54 km/h; trolley mass and angled impact components)
- IIHS (50 km/h SUV‑type trolley, 1 500 kg)
- J‑NCAP and Australian ADR/ANCAP adaptations
- Child‑specific test parameters - door intrusion depth and velocity, struck car accelerations, deformation profiles, door interior force‑deflection, window sill geometry and boundary conditions important for CRS performance in side impacts.
- Requirements for a CRS side‑impact test procedure - test severity selection, validation criteria, repeatability and reproducibility, and defined field of application.
- Comparative test procedures and drafts - review of ISO/DIS 14646, TNO, TUB, ADAC and Australian procedures, plus annexes with draft methods for rearward‑facing and forward‑facing CRS and voting/comment records.
Applications and users
ISO/TR 14646:2007 is useful for:
- CRS manufacturers designing and validating child seats and harnesses for lateral crash performance
- Automotive OEMs evaluating interior geometry and door structures for child occupant protection
- Test laboratories and certification bodies selecting or harmonizing test methods
- Regulators and standards developers benchmarking regional protocols and preparing normative standards
- Safety researchers and consumer test organisations (Euro‑NCAP, IIHS, ANCAP) comparing methods and interpreting crash data
Practical uses include informing CRS design choices, choosing representative side‑impact boundary conditions (intrusion, velocity), developing repeatable test setups, and supporting harmonised regulatory development.
Related standards
- ECE Regulation No. 95 (side impact / MDB)
- FMVSS 214 (US side impact)
- Euro‑NCAP, IIHS, J‑NCAP and Australian ADR/ANCAP protocols
- AS/NZS 1754 (Australian CRS standard)
Keywords: ISO/TR 14646:2007, side impact testing, child restraint systems, CRS, door intrusion, Euro‑NCAP, FMVSS 214, IIHS, rear‑facing, forward‑facing, crash test methods.