International Standard
ISO 7231:2023
Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
Reference number
ISO 7231:2023
Edition 3
2023-08
International Standard
Read sample
ISO 7231:2023
82601
Published (Edition 3, 2023)

ISO 7231:2023

ISO 7231:2023
82601
Language
Format
CHF 96
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Abstract

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.

General information

  •  : Published
     : 2023-08
    : International Standard published [60.60]
  •  : 3
     : 14
  • ISO/TC 45/SC 4
    83.100 
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