ISO 7231:2023

Published (Edition 3, 2023)

ISO 7231:2023

CHF 96

Convert Swiss francs (CHF) to your currency

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

Status
: Published

Publication date
: 2023-08

Stage
: International Standard published [60.60]
Edition
: 3

Number of pages
: 14
Technical Committee :
ISO/TC 45/SC 4

ICS :
83.100
RSS updates