TS ISO 6440

TS ISO 6440 is a glossary-style standard for wheelchairs, organizing the terminology, concepts and definitions used for these products. It identifies the basic elements of manual, powered and other wheelchairs, and it uses schematic illustrations to show the dimensions commonly used when describing wheelchair physical characteristics. In practical terms, the standard is about a common technical language rather than about testing wheelchair performance.

Why wheelchair terminology needs to be standardized

In wheelchair technology, precise naming matters because similar-looking components can serve different functions across product types. Frame, seat, armrest, foot support, wheel and push rim are examples of elements that must be described consistently when products are compared, specified or documented. As general technical context, a shared vocabulary helps manufacturers, clinicians, service personnel and users communicate more clearly and interpret dimensions in the same way.

What this standard covers

• Basic elements associated with manual, powered and other wheelchairs
• Terms and definitions presented with illustrations
• Schematic presentation of dimensions commonly used to describe physical characteristics
• Standardized wording for structural parts and sizing concepts

This is not a performance or test-method standard. It does not set out experimental procedures for propulsion, durability or safety verification; instead, it supports consistent product description, technical documentation and education. In the broader accessibility and mobility-aid field, that consistency helps reduce ambiguity and makes it easier to compare different wheelchair designs and configurations.