ETSI ETR 051-ed.1

Human Factors (HF); Usability checklist for telephones Basic requirements

NORMA vydaná dňa 11.12.1992

The information about the standard:

Designation standards: ETSI ETR 051-ed.1
Publication date standards: 11.12.1992
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: European technical standard
Kategória: Technické normy ETSI