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ISO 7231:2010 Polymeric materials, cellular, flexible - Determination of air flow value at constant pressure-drop
standard by International Organization for Standardization, 07/01/2010
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ISO 7231:2010 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.