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ISO 4638
ISO 4638
ISO 4638 - Polymeric materials, cellular flexible -- Determination of air flow permeability
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Permeabilità all'aria
TQD-G1 is professionally applicable to the determination of air permeability of decorating materials used in cars, e.g. polyurethane, expanded plastics, PVC, leather, textiles, non-woven and other materials.