Summary
The document covers the requirements concerning the pattern of a mask.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 02/01/1997 |
| Cancellation Date | 05/01/2015 |
| Page Count | 7 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |