UNE-CEN/TR 15894:2011 IN Hardware for construction. Door fittings intended for use by children, the elderly and people with disabilities in public and private buildings. Specifications Guide
UNE-ETS 300381:1999 Telephony for people with impaired hearing. Inductive coupling of telephone headsets to hearing aids
UNE-EN 301104 V1.1.1 (Ratified) Human factors (HF). Requirements derived from the human factor for the European telephone numbering area (English)