HA535
Õhutiheduse klass
Air tightness class
L2
DEFINITION · EN
air property that indicates the density class for ventilation ducts according to standard
ExamplesEN 12237:2003;EN 1507:2006
CONNECTED ↘
last_edited: 16.05.2026, 11:08
air property that indicates the density class for ventilation ducts according to standard