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ISO

ISO 4638 : 1984

Polymeric materials, cellular flexible — Determination of air flow permeability

Standard Details

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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 4638 : 1984
Document Year: 1984

Life Cycle

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ISO 4638 : 1984
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