2015DIN EN 54-27:2015-05 Fire detection and fire alarm systems - Part 27: Duct smoke detectors; German version EN 54-27:2015 / Note: To be amended by DIN EN 54-27/A1 (2016-07).
2015DIN EN 54-27:2015 Fire detection and fire alarm systems - Part 27: Duct smoke detectors; German version EN 54-27:2015
1970DIN EN 54-27 E:2014-09 Fire detection and fire alarm systems - Part 27: Duct smoke detectors
1970DIN EN 54-27 E:2008-09 Fire detection and fire alarm systems - Part 27: Duct smoke detectors