ASTM D4157 PDF

Weight: g/Im. Product End Use: Upholstery. Identification. Tested For: Bente Ellingsoe, Quality Department. Key Test: ASTM D/ACT K. Gabriel A/S. ASTM DAbrasion Test by Oscillatory – Download as PDF File .pdf), Text File .txt) or read online. ASTM D* Wyzenbeek (Oscillatory Cylinder). The ASTM D is a test of the American Society of Testing and Materials. A Wyzenbeek machine is.

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Understanding Abrasion Testing

The resistance to abrasion is affected by many factors, such as the inherent mechanical properties of the fibers; the dimensions of the fibers; the structure of the yarns; the construction of the fabrics; and the type, kind, and amount of finishing material added to the fibers, yarns, or fabric.

For more information please refer to abrasion white papers on the ACT website. Option 4—Breaking Strength Loss. Wire screen or wire mesh is used as an abradant when the test specimen is more abrasive than the cotton duck. Specific instances have been described. Permanent abradants may also change due to pick up of finishing or other material from test fabrics and must accordingly be cleaned at frequent intervals.

It is not surprising, therefore, to find that there are many different types of abrasion testing machines, abradants, testing conditions, testing procedures, methods of evaluation of abrasion resistance, and interpretation of d41157.

However, caution is advised because anomalous results may occur due to uncontrolled factors in manufacturing or other processes. In an effort to bring further clarity to the appropriate consideration of double rub numbers, as of April 1,textile companies and furniture manufacturers that use the ACT certification mark for abrasion on their samples will now include the following statement whenever publishing test results in excess aatmdouble rubs: It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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This test can also increase the uniformity of the abrading action by washing away abrasion debris and preventing the build up of broken fibers that can interfere with the proper progression of the tests. A Wyzenbeek machine is used for this test allowing samples of the test fabric to be pulled tight in a frame and held stationary. Wyzenbeek — New Test Video View: There is no correlation between Wyzenbeek and Martindale results.

Experience has shown in many instances, that relative results astmm with this instrument when used on a series of fabrics, agreed with those obtained based upon performance in end use. Laboratory tests may be reliable as an indication of relative end-use performance in cases where the difference in abrasion resistance of various materials is large, but they should not be relied upon where differences in laboratory test findings are small.

Link to Active This link will always route to the current Active version of the standard.

Understanding Abrasion Testing – Alendel Fabrics Ltd.

Whenever possible all materials that are to be compared with each other should be tested under the same pressure and tension. If a bias is found, either a cause must be found and corrected, or future test results must be adjusted in consideration of the known bias. The resistance to abrasion is affected by many factors that include the inherent mechanical properties of the fibers; the dimensions of the fibers; the structure of the yarns; the construction of the fabrics; the type, kind, amount of treatment added to the fibers, yarns or fabric; the nature of the abradant; the tension on the specimen; the pressure between the specimen and the abradant; and the dimensional changes in the specimen.

Collectively, these considerations will facilitate your selection of the most appropriate fabric for the project. Martindale Test Video —. The number of cycles that the fabric can endure before fabric shows objectionable change in appearance yarn breaks, pilling, holes is counted. This explains the requirements for both residential and contract spaces.

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The results obtained from the use of this instrument assist in evaluating these factors relative to the wear serviceability of the final textile product in specific end uses.

This test method may not be usable for some fabric constructions. Make sure to check a new post from the Association of Contract Textiles regarding acceptable abrasion standards. In fact, Wyzenbeek results abovedouble rubs have not been shown to be an indicator of increased fabric lifespan. A fabric with twice the number of abrasion cycles does not indicate double d41557 service life.

Wyzenbeek testing measures flat abrasion resistance and does not consider edge abrasion or other types of surface wear that may occur in actual upholstered applications. 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.

Historical Version s – view previous versions of standard. Therefore, ACT does not recommend using absolute numbers r4157 comparision. Four options for evaluation are included: Fabric samples are mounted flat and rubbed in a figure eight like motion using a piece of worsted wool cloth as the abradant.

Link to Active This link will always route to the current Active version of the standard.

The relationship varies with different end uses, and different factors may be necessary in any calculation of predicted durability from specific abrasion data. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The values stated in each system may not be exact equivalents; therefore, ast system shall be used independently of the other. This test method provides a comparative measurement of the resistance of woven textile fabrics to abrasion, and may not necessarily predict the asm performance of fabrics in actual use.