DIN 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 54-27:2015-05 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