CEN - EN ISO 7231
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
active, Most Current
| Organization: | CEN |
| Publication Date: | 1 August 2023 |
| Status: | active |
| Page Count: | 22 |
| ICS Code (Cellular materials): | 83.100 |
scope:
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.
Document History
EN ISO 7231
August 1, 2023
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
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...
July 1, 2010
Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
This International Standard specifies two methods for determining the air flow value of flexible cellular polymeric materials:
— method A, for conventional types of flexible cellular polymeric...
November 1, 1997
Polymeric Materials, Cellular Flexible - Method of Assessment of Air Flow Value at Constant Pressure-Drop
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