1 Scope
This document specifies strength requirements and test methods for wheelchair castor
assemblies. The test methods include corrosion, abrasion and fatigue conditions. This
document also specifies requirements for disclosure of test results.
It is applicable to castor assemblies of or developed for use in occupant and to assistant-propelled
manual wheelchairs and electrically powered wheelchairs.
The test requirements are also applicable to wheelchair castor assemblies not necessarily
associated or supplied with a wheelchair.
Castor assemblies including those with anti-tip castor wheels that do not touch the
ground during wheelchair travel are outside the scope of this document.