ISO 20342-4:2026

This document specifies conditions and test methods for the durability of assistive products for tissue integrity (APTI) when lying down. These methods are additional to the ones in ISO 20342-1. This document is applicable to both reactive and active APTIs, such as mattresses and overlays, and includes single-patient multiple-use products. This document does not apply to single-use products. NOTE This document is intended to help differentiate the durability characteristics between APTIs. It is not intended for determining overall performance or for ranking or scoring of such APTIs.