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BS EN ISO 4638:1995 Polymeric materials, cellular flexible. Determination of air flow permeability

Description Printed version of this is available at library. To request, please e-mail to referencepk@usm.my and include a copy of this record in your e-mail. Abstract This International Standard specifies a method for the determination of the permeability of flexible cellular polymeric materials to air flow. It is applicable to test pieces cut from products of cellular material. NOTE - ISO 7231, Polymeric materials, cellular flexible - Method of assessment of air flow value at constant pressure drop, specifies a simple quality control method which is also based on the flow of air through cellular materials. This can be used when it is not the intention to calculate the intrinsic properties of various materials in order to compare them, but merely to control the quality of a given cellular material.

Contributor(s): MAR - Data Entry Person Primary Item Type: British Standard Identifiers: ICS 83.100 Cellular materials ISBN 0580237842 Language: English Subject Keywords: Mathematical calculations; Air permeability; Foamed rubber; Polymers; Air; Natural rubber; Test specimens; Gas flow; Cellular materials; Permeability measurement; Specimen preparation; Synthetic rubber; Flexible materials; Test equipment First presented to the public: 7/14/2023 Original Publication Date: 7/15/1995 Previously Published By: British Standards Institution Place Of Publication: London, United Kingdom Citation: Extents: Number of Pages - 10 License Grantor / Date Granted:   / ( View License ) Date Deposited 2023-07-14 13:15:05.0 Submitter: Muhamad Azmil Ramli

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