NS EN 14591-1 : 1ED 2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Safety requirements
   5.1 General
   5.2 Air shutter frames
        5.2.1 Materials and components
        5.2.2 Air shutter frame length and rib thickness
        5.2.3 Connection to strata
   5.3 Air doors
        5.3.1 General
        5.3.2 2-bar travel way door
        5.3.3 2-bar haulage way door
        5.3.4 Control system
6 Marking
Annex A (normative) Representation of the verifiably
         tested 2-bar travel way door with an inside
         width of a = 700 mm and a vertical clearance of
         h[0] = 1800 mm
Annex B (normative) Representation of the verifiably
         tested 2-bar haulage way door with an inside
         width of a = 1600 mm and a vertical clearance
         h[0] = 2000 mm
Annex ZA (informative) Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 94/9/EC
Bibliography

Applies to air shutter frames and air doors for ventilation structures, which are to remain functional after the passage of explosions with overpressures of up to 2 bars.