SS-EN-ISO-7231 › Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop (ISO 7231:2010)
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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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SS-EN ISO 7231:2010
July 14, 2010
EN ISO 7231:2010(IDT); ISO 7231:2010(IDT)