NA 060
DIN Standards Committee Mechanical Engineering
DIN EN 81-21 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ISO 3864-1 | 2011-04 | Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety signs and safety markings More |
| DIN 4844-1 | 2012-06 | Graphical symbols - Safety colours and safety signs - Part 1: Observation distances and colorimetric and photometric requirements More |
