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nkSRPS EN ISO 4638:2026

Polymeric materials, cellular flexible — Determination of air flow permeability

General information

30.99     Jun 24, 2026

40.20    Sep 9, 2026

ISS

G061

European Norm

83.100  

English  

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

PREVIOUSLY

PUBLISHED
SRPS EN ISO 4638:2011

NOW

PROJECT
nkSRPS EN ISO 4638:2026
30.99 CD approved for registration as DIS
Jun 24, 2026

Related project

Adopted from prEN ISO 4638 rev IDENTICAL

Adopted from ISO/FDIS 4638 IDENTICAL