- Report #: NT BUILD 219
- Approved: June 1983
This NORDTEST method describes how to measure the air permeance of building board and paper in a laboratory. It may be used as part of a type testing, as a routine control and as a test for other purposes.
2. FIELD OF APPLICATION
The method is used to determine the quantity of air flowing through paper and board, particularly materials used to prevent air from penetrating into insulation materials and building constructions.
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