BS EN ISO 7231:2010 PDF

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

First page of standard BS EN ISO 7231:2010

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Title (English):

BS EN ISO 7231:2010

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

Document status:: Withdrawn
Format:: Electronic (PDF)
Publication date:: August 31, 2010
ICS:: 83.100
Technical committee:: CEN
SKU:: BS EN ISO 7231:2010

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Abstract

1 Scope 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 material;

— method B, for all types of flexible cellular polymeric material, but especially for materials with a low permeability to air.

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 International Standard, the expression “conventional type of flexible cellular polymeric material” means types which are unsuitable for sealing purposes.

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Abstract

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