What is Air Permeability? Air Permeability is a resistance of fabrics (woven, knitted and non woven textile materials) to the passage of air under constant pre-set air pressure. Air permeability is an important property of some textile materials. The air permeability is mainly dependent upon fabric's weight and construction (thickness and porosity). Labthink TQD-G1 Air Permeability Tester 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. TQD-G1 Air Permeability Tester conforms to the multiple international standards: ISO 4638 - Polymeric materials, cellular flexible -- Determination of air flow permeability ISO 5636 - Paper and board -- Determination of air permeance and air resistance ISO 9237 - Textiles -- Determination of the permeability of fabrics to air ASTM D737 - Standard Test Method for Air Permeability of...
XLW (PC) packaging seal strength tester is professionally applicable to the determination of force properties of various flexible packaging materials, with high precision (better than 0.5% of reading value) and multiple test ranges. This instrument conforms to various national and international standards as follows: ASTM F88 - Standard Test Method for Seal Strength of Flexible Barrier Materials Part examples for the Packaging Seal Strength Tester Basic Applications: Heat Seal Strength Test, Tensile Property, 90 & 180 Degree Peel Test, Tear Resistance Test and etc. Packaging Seal Stength Test Principle: The pre-conditioned specimen is mounted between two grips, which move in relative direction during the test. The signals of force and displacement changes are separately recorded by the load cell fixed on the driven grip and embedded displacement transducer. The tensile strength, tear strength and elongation rate can be obtained by further calculation. View the v...