ISO/FDIS 4638:2026
Forthcoming Draft standard
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ISO/FDIS 4638:2026

Polymeric materials, cellular flexible — Determination of air flow permeability

Summary

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.

Notes

40.99 : Rapport complet diffusé: DIS approuvé pour enregistrement comme FDIS

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 05/11/2026
Edition 2
Page Count 0
EAN ---
ISBN ---
Weight (in grams) ---

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