ISO/TS 18671:2026

Test methodologies for assessing the compatibility of wet wipes and moist toilet tissue with the wastewater collection and treatment systems, and appropriate labelling ISO/TS 18671:2026

Publication date:   Aug 13, 2026

Scope

This document provides test methodologies for assessing the compatibility of wet wipes and moist toilet tissue with the wastewater collection and treatment systems, and it specifies appropriate labelling for products deemed incompatible. The products that this document is applicable for are wet wipes and moist toilet tissue.
This document does not cover:

toilet paper as defined and covered by other ISO documents;
chemical toilets or compost toilets that are not connected to sewer systems;
macerator and vacuum sewer systems;
water soluble polymers.