NA 027
DIN Standards Committee Optics and Precision Mechanics
DIN EN 250 [CURRENT] references following documents:
| Document number | Edition | Title |
|---|---|---|
| EN ISO 12209 | 2013-09 | Gas cylinders - Outlet connections for gas cylinder valves for compressed breathable air (ISO 12209:2013) More |
| EN 12021 | 2014-04 | Respiratory equipment - Compressed gases for breathing apparatus More |
| EN 148-2 | 1999-02 | Respiratory protective devices - Threads for facepieces - Part 2: Centre thread connection More |
| EN 148-3 | 1999-02 | Respiratory protective devices - Threads for facepieces - Part 3: Thread connection M 45×3 More |
| ISO 263 | 1973-04 | ISO inch screw threads; General plan and selection for screws, bolts and nuts; Diameter range 0,06 to 6 in More |
