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NBN EN 12220:1998
Ventilation for buildings - Ductwork - Dimensions of circular flanges for general ventilation
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Summary
This European Standard specifies dimensional characteristics of circular flanges for sheet metal ductwork. It applies to ductwork used in ventilating and air conditioning systems in buildings, subject to human occupancy. For flange dimensions of industrial fans see ISO 6580 and ISO 13351.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 06/23/1998 |
| Cancellation Date | 10/31/1998 |
| Page Count | 11 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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23/06/1998
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