ISO 7231:2023 ✓ Most Recent

2570612

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

standard by International Organization for Standardization , 08/01/2023

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Full Description

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. See more

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Document History

  1. ISO 7231:2023

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

    • Most Recent

  2. ISO 7231:2010


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

    • Historical Version

  3. ISO 7231:1984


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

    • Historical Version

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Published:

08/01/2023

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1 file

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