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ISO/WD 25900

Plastics — Determination of air permeability — Gas flow rate method ISO/WD 25900

General information

20.60   Close of comment period   Mar 26, 2026

ISO

ISO/TC 61/SC 5 Physical-chemical properties

International Standard

Scope

This document specifies a procedure for the determination of air permeability based on the measurement of the gas flow rate, establishes general principles, and gives guidelines for performance of measurements. The air permeability is applicable for plastic films, artificial leathers, pieces of plastics, foam board and elastic porous plastics.

Life cycle

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IN_DEVELOPMENT
ISO/WD 25900
20.60 Close of comment period
Mar 26, 2026




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