ISO 10542-1-2012 amd1-2021 PDF

Full title and description

ISO 10542-1:2012/Amd 1:2021 — Technical systems and aids for disabled or handicapped persons — Wheelchair tiedown and occupant‑restraint systems — Part 1: Requirements and test methods for all systems — Amendment 1: Annexes K, L, M. This document is an amendment to ISO 10542-1:2012 that adds informative annexes covering rear-impact test methods, additional impact test details and criteria, and design guidance for vehicle‑mounted head‑and‑back restraints.

Abstract

This amendment (Amd 1:2021) supplements ISO 10542-1:2012 by introducing Annex K (test method and performance criteria for rear impact of wheelchair tiedown and occupant‑restraint systems — WTORS), Annex L (detailed impact‑test equipment, sled pulse and measurement requirements for frontal-impact testing), and Annex M (design recommendations and rear‑impact test method for vehicle‑mounted head‑and‑back restraints). The main part (ISO 10542‑1:2012) specifies design and performance requirements and dynamic test methods for WTORS intended for use with occupied wheelchairs as forward‑facing vehicle seats.

General information

• Status: Published (Amendment).
• Publication date: April 2021 (ISO record: 2021‑04; national listings show publication early April 2021, e.g., 6 April 2021).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 11.180.10 (Aids and adaptations for moving / assistive products for mobility).
• Edition / version: ISO 10542-1:2012 (2nd edition) with Amendment 1 (Amd 1:2021).
• Number of pages: Main standard: 68 pages; Amendment (Amd 1:2021): 32 pages.

Scope

ISO 10542-1:2012 sets out design and performance requirements, marking, labelling and manufacturer instructions for wheelchair tiedown and occupant‑restraint systems (WTORS) that use belt‑type occupant restraints for occupied wheelchairs used as forward‑facing vehicle seats. It applies to manual and powered wheelchairs (including scooters) for children and adults with body mass ≥ 22 kg and also to WTORS sold as complete systems or as components/subassemblies. Amendment 1 adds informative annexes for rear‑impact testing and additional test and design guidance.

Key topics and requirements

• Design and performance requirements for WTORS (dynamic crashworthiness for forward‑facing wheelchair occupants).
• Frontal‑impact dynamic test protocol using an 85 kg surrogate wheelchair and a midsize adult ATD with a nominal frontal sled pulse (nominal 48 km/h, 20 g characteristics) for WTORS verification.
• Annex K — informative test method and performance criteria for moderate rear‑impact evaluation (25 km/h delta‑V / ~14 g rear‑impact scenario).
• Annex L — test equipment, sled pulse requirements (48 km/h ±), instrumentation and measurement accuracy for impact testing; surrogate wheelchair and ATD specifications; camera and signal‑filtering guidance.
• Annex M — design recommendations and a rear‑impact test method and performance criteria for vehicle‑mounted head‑and‑back restraints intended to protect wheelchair occupants in rear impacts.
• Requirements for product marking, labeling, manufacturer instructions and warnings to installers and consumers; applicability statements for children and adults and for equipment intended for particular wheelchair models.

Typical use and users

Manufacturers of WTORS and related components, vehicle converters and upfitters, independent evaluators and testing laboratories, regulatory and procurement bodies, mobility equipment designers, and organizations involved in vehicle accessibility and passenger safety use this standard to design, test and validate wheelchair tiedown and occupant‑restraint systems for use in motor vehicles. Clinicians, therapists and fleet managers reference the standard when selecting or specifying securement systems for transport of wheelchair users.

Related standards

ISO 10542-1 is related to other ISO and national standards covering wheelchair safety and vehicle seating, notably ISO 7176‑19 (wheelchairs for use as motor vehicle seats / wheelchair seating crash tests), ISO 7176 series (wheelchair performance and safety), and national/region‑specific regulations for vehicle occupant restraints and child restraints. Amendment annexes reference surrogate wheelchair drawings and methods described in related test standards and technical reports.

Keywords

wheelchair tiedown, occupant restraint, WTORS, crash test, frontal impact, rear impact, surrogate wheelchair, ATD, wheelchair securement, vehicle‑mounted head‑and‑back restraint, ISO 10542, amendment 2021.

FAQ

Q: What is this standard?

A: ISO 10542‑1:2012 is the part of the ISO 10542 series that specifies requirements and test methods for wheelchair tiedown and occupant‑restraint systems (WTORS) used when occupied wheelchairs are used as forward‑facing vehicle seats. Amendment 1:2021 adds informative annexes (K, L, M) covering rear‑impact testing, additional test details and design guidance.

Q: What does it cover?

A: It covers design and performance requirements, dynamic crash test methods (primarily frontal impact), product marking/labeling, manufacturer instructions, and applicability limits (e.g., occupants ≥ 22 kg). The 2021 amendment adds annexes for rear‑impact testing and head‑and‑back restraint design/testing.

Q: Who typically uses it?

A: WTORS and mobility‑product manufacturers, testing laboratories, vehicle upfitters, regulators, procurement agencies, clinicians specifying transport solutions, and researchers in mobility and vehicle safety.

Q: Is it current or superseded?

A: The 2012 edition (2nd edition) remains the base standard; Amendment 1 (2021) is published and applies as an amendment to the 2012 edition. Users should check ISO and their national standards body for any later revisions or additional amendments beyond 2021.

Q: Is it part of a series?

A: Yes — ISO 10542 is a multi‑part series addressing various aspects of wheelchair tiedown and occupant‑restraint systems and related topics; Part 1 is the requirements and test methods for all systems, and other parts (historically) address complementary topics; it also links with the ISO 7176 series for wheelchair crash testing.

Q: What are the key keywords?

A: Wheelchair tiedown, occupant restraint, WTORS, crashworthiness, frontal impact, rear impact, surrogate wheelchair, Hybrid III ATD, vehicle‑mounted head‑and‑back restraint, ISO 10542‑1:2012/Amd 1:2021.