This part of ISO 10139 specifies requirements for softness, adhesion, water absorption and water solubility as well as packaging, labeling and instructions for use for soft denture relining materials suitable for long-term use. These materials may also be used for maxillofacial prostheses.
EN ISO 10139-2:2016 Referenced Document
ISO 10993-1:2009 Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process