DIN ISO 4638:1993-07
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POLYMERIC MATERIALS, CELLULAR FLEXIBLE - DETERMINATION OF AIR FLOW PERMEABILITY
Hardcopy , PDF
German
01-01-1993
Specifies a method for the determination of the permeability of flexible cellular polymeric materials to air flow. Applies to test pieces cut from products of cellular material. Useful in: ensuring product quality (quality assurance); studying the structure of cellular products in connection with their physical properties and their method of manufacture.
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