ISO 16840-13:2021

Wheelchair seating — Part 13: Determination of the lateral stability property of a seat cushion

This document specifies apparatus, test methods, and disclosure requirements for determination of lateral stability properties of wheelchair seat cushions by measuring the response from the cushion to a shift in the centre of mass of the load on the cushion. It provides a method of determining changes in a particular physical and mechanical property of the cushion. It does not provide information specific to cushion performance for a particular individual user. It does not provide information related to anterior-posterior stability, nor to stability contributions from cushion edges.

NOTE?1??? Test conditions simulate a symmetric anatomy.

NOTE?2??? Loads are intended to represent those seen under the pelvis of a 40th to 60th percentile wheelchair user.

This document is applicable to cushions used in situations other than a wheelchair.

Edition	2021
Standard Part No	13
Published Date	2021
Published By	International Standardization Organisation
Page Count	9