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ISO 7231:2023

Current Revision

Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop

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This document specifies two methods for determining the air flow value of flexible cellular polymeric materials:

—     method A, for conventional types of flexible cellular polymeric material;

—     method B, for all types of flexible cellular polymeric material, but especially for materials with a low permeability to air.

For method B, two methods are specified in this document:

—     method B1: with manual measurement;

—     method B2: with automatic measurement.

NOTE 1       Air flow values can be used to give an indication of the effects of formulation and production variables on the cellular structure.

NOTE 2       In this document, the expression “conventional type of flexible cellular polymeric material” means types which are unsuitable for sealing purposes.


SDO ISO: International Organization for Standardization
Document Number ISO 7231
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 45/SC 4
Publish Date Document Id Type View
Not Available ISO 7231:2023 Revision