NA 001
DIN/VDI-Normenausschuss Akustik, Lärmminderung und Schwingungstechnik (NALS)
Technische Regel
[AKTUELL]
ETSI TR 101767 V 1.1.1
ETSI TR 101767 V 1.1.1
Human Factors (HF) - Symbols to identify telecommunications facilities for deaf and hard of hearing people - Development and evaluation
Titel (englisch)
Human Factors (HF) - Symbols to identify telecommunications facilities for deaf and hard of hearing people - Development and evaluation