DIN Standards Committee Materials Testing
Polymeric materials, cellular flexible - Determination of air flow permeability
Abstract
Applicable to test pieces cut from products of cellular materials. Useful for two purposes: a) studying the structure of cellular products in connection with their physical properties and their method of manufacture and b) ensuring product quality (quality assurance). Describes principle, apparatus, test piece and conditions, procedure and calculation and expression of the results. Three figures deliver the details for testing.
Begin
2026-01-09
WI
00249A7R
Planned document number
prEN ISO 4638 rev
Responsible national committee
NA 062-04-37 AA - Testing of flexible and rigid cellular materials
Responsible european committee
previous edition(s)
Polymeric materials, cellular flexible - Determination of air flow permeability (ISO 4638:1984)
1995-05
