Publikuar
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.
WITHDRAWN
ISO 7231:2010
PUBLISHED
ISO 7231:2023
60.60
Standard published
15 gush 2023
Materiale polimere,qelizore, fleksibël - Përcaktimi i indeksit të rrjedhës së ajrit në rënie të vazhdueshme të presionit (ISO 7231:2023)
60.60 Standard published
English