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The document specifies the requirements for travel-way air locks in level and inclined mine excavations of mining. Travel-way air locks are built in connection with air locks. They allow travelling miners to pass the air lock without danger and to avoid air pressure reductions.
| Author | DIN |
|---|---|
| Editor | DIN |
| Document type | Standard |
| Format | File |
| ICS | 73.100.20 : Ventilation, air-conditioning and illumination equipment
|
| Number of pages | 8 |
| Replace | DIN 21639 (1999-09) |
| Year | 2016 |
| Document history | DIN 21639 (2016-09) |
| Country | Germany |
| Keyword | 21639 |