This document specifies requirements for washer-disinfectors (WD) that are intended to be used for emptying, flushing, washing and thermal disinfection of non-critical devices in the form of human waste containers by one operating cycle.This document is intended to be used in conjunction with the general requirements specified in ISO 15883-1:2024, except for those specified in 4.1.1, and with the requirements of ISO 15883-5:2021, except for those specified in 4.1.2.