Resumen
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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Informaciones generales
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Estado: PublicadoFecha de publicación: 2023-08Etapa: Norma Internacional publicada [60.60]
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Edición: 3Número de páginas: 14
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Comité Técnico :ISO/TC 45/SC 4ICS :83.100
- RSS actualizaciones
Ciclo de vida
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Anteriormente
RetiradaISO 7231:2010
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Ahora
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