SS-EN-ISO-7231 › Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2023)
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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.
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Designation Name
SS-EN ISO 7231:2023
Revision Level
2023 EDITION
Status
Current
Publication Date
Aug. 28, 2023
Language(s)
English
Page Count
24
International Equivalent
EN ISO 7231:2023(IDT); ISO 7231:2023(IDT)