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Polymeric materials, cellular flexible - Determination of air flow permeability (ISO 4638:1984)

Overview EN ISO 4638:1995 specifies a laboratory method for determining the air flow permeability of flexible cellular polymeric materials (flexible foams). The test characterises how easily air pass…

Polymeric materials, cellular flexible - Determination of air flow permeability (ISO 4638:1984)

Overview EN ISO 4638:1995 specifies a laboratory method for determining the air flow permeability of flexible cellular polymeric materials (flexible foams). The test characterises how easily air pass…

Polymeric materials, cellular flexible. Determination of air flow permeability

Polymeric materials, cellular flexible — Determination of air flow permeability

Overview ISO 4638:1984 specifies a laboratory method for determination of air flow permeability of flexible cellular polymeric materials (flexible foams). The procedure applies to test pieces cut fro…