ASTM D737 PDF

Have questions? Give us a call This test applies to most fabrics, including woven fabrics, nonwoven fabrics, air bag fabrics, blankets, napped fabrics, knitted fabrics, layered fabrics, and pile fabrics. The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated. The values stated in SI units are to be regarded as the standard. The values stated in inch-pound units may be approximate.

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The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated. The values stated in inch-pound units may be approximate. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Multi-user access to over 3, medical device standards, regulations, expert commentaries and other documents.

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ASTM D 737 Air Permeability

Referenced Documents 2. Terminology 3. Summary of Test Method 4. From this rate of air flow, the air permeability of the fabric is determined.

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ASTM D737 - 18

Historical Version s - view previous versions of standard. More D As a minimum, ensure the test samples to be used are as homogeneous as possible, are drawn from the material from which the disparate test results were obtained, and are randomly assigned in equal number to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias. In filtration, for example, efficiency is directly related to air permeability. Air permeability also can be used to provide an indication of the breathability of weather-resistant and rainproof fabrics, or of coated fabrics in general, and to detect changes during the manufacturing process.

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Standard Test Method for Air Permeability of Textile Fabrics

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