This document specifies a method using microscopy to identify leather and distinguish it from other materials. The method is not applicable for identifying specific leathers (e.g. sheep leather).
EN ISO 17131:2020 history
2020EN ISO 17131:2020 Leather - Identification of leather with microscopy (ISO 17131:2020)
2012EN ISO 17131:2012 Leather - Identification of leather with microscopy