ISO 4638:1984Published

Polymeric materials, cellular flexible — Determination of air flow permeability

Matériaux polymères alvéolaires souples — Détermination de la perméabilité à l'air

A new edition is under development: ISO 4638.

Abstract / scope

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.

Life cycle

Replaced by

ISO 4638Under developmentPolymeric materials, cellular flexible — Determination of air flow permeabilityInternational Standard · ISO/TC 45/SC 4