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BS EN ISO 7231:2023

BS EN ISO 7231:2023

$102.76

Polymeric materials, cellular, flexible. Determination of air flow value at constant pressure-drop

Published By Publication Date Number of Pages
BSI 2023 22
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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.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 5.1 Apparatus
10 5.2 Test pieces
5.3 Test conditions
11 5.4 Procedure
5.5 Test report
12 6.1 Method B1 with manual measurement
6.1.1 Apparatus
14 6.1.2 Test pieces
6.1.3 Test conditions
6.1.4 Procedure
6.1.5 Precision
6.1.6 Test report
15 6.2 Method B2 with automatic measurement
6.2.1 Apparatus
16 6.2.2 Test pieces
6.2.3 Test conditions
17 6.2.4 Procedure
6.2.5 Test report

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BS EN ISO 7231:2023
$102.76