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.

Author: Togal Brakinos
Country: Guadeloupe
Language: English (Spanish)
Genre: Politics
Published (Last): 10 April 2005
Pages: 487
PDF File Size: 5.93 Mb
ePub File Size: 16.95 Mb
ISBN: 116-6-46329-259-1
Downloads: 64470
Price: Free* [*Free Regsitration Required]
Uploader: Vukinos

Wyzenbeek — New Test Video. Association of Contact Textiles Website. As a minimum, test samples that are aatm homogeneous as possible, drawn from the material from which the disparate test results were obtained, and randomly assigned in equal numbers to each laboratory for testing.

ACT reminds you that there are many points to consider when specifying textiles. The number of cycles that the fabric can endure before fabric shows objectionable change in appearance yarn breaks, pilling, holes is counted.

Understanding Abrasion Testing

ACT studies indicate that results of multiple abrasion tests performed on some woven fabric structures may vary significantly — as much as 60 percent or more. The measurement of the relative amount of abrasion may also be affected astmm the method of evaluation and may be influenced by the judgment of the operator.

Wyzenbeek — New Test Video View: All of the following issues should d417 included in any such assessment: Four options for evaluation are included:. 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.

There is no correlation between Wyzenbeek and Martindale results.

Link to Active This link will always route to the current Active version of the standard. With disposable abradants, the abradant is used only once or changed after limited use. Other procedures for measuring the abrasion resistance of textile fabrics are given in: Historical Version s – view previous versions of standard.

Ast, permanent abradants that use hardened metal or equivalent surfaces, it is assumed that the abradant will not change appreciably in a specific series of tests, but obviously similar abradants used in different laboratories will not likely change at the same rate due to differences in usage. Other procedures for measuring the abrasion resistance of textile fabrics are given in: Combining values from the two sstm may result asstm nonconformance with the specification. Collectively, these considerations will facilitate your selection of the most appropriate fabric for the project.

  ASRAR AL-TAWHID PDF

This explains the requirements for both residential and contract spaces. This test method may not be usable for some fabric constructions.

Specific instances have been described. In fact, Wyzenbeek results abovedouble rubs have not been shown to be an indicator of increased fabric lifespan. Whenever possible all materials that are to be compared with each other should be tested under the same pressure and tension. 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.

Other fabrics with established test values may be used for this purpose. Within the text, the inch-pound units are shown in parentheses. The relationship varies with different end uses, and different factors may be necessary in any calculation of predicted durability from specific abrasion data. This is an oscillating test. Wyzenbeek testing measures flat abrasion resistance and does not consider edge abrasion or asym types of surface wear that may occur in actual upholstered applications.

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.

Permanent abradants may also change due to pick up of finishing or other material from test fabrics and asm accordingly be cleaned at frequent intervals.

ASTM D – 08() Standard Guide for Abrasion Resistance of Textile Fabrics (Uniform Abrasion)

Wyzenbeek results abovedouble rubs have not been shown to be an indicator of increased lifespan. In general, they should not be relied upon for prediction of actual wear-life in specific end uses unless there are data showing the specific aztm between laboratory abrasion tests and actual wear in the intended end-use.

  DSM-G600 MANUAL PDF

This test method provides a comparative measurement of the resistance of woven textile fabrics to abrasion, and may not necessarily predict the actual performance of fabrics in actual use. The resistance to abrasion is affected asmt 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 s4157 of finishing material added to the fibers, yarns, or fabric.

Studies have shown that Wyzenbeek test awtm on the same fabric can and do vary significantly from test to test. A fabric with twice the number of abrasion cycles does not indicate double the service life. My go to reference on the subject is the Association for Contract Textiles. Make sure to check a new post from the Association of Contract Textiles regarding acceptable abrasion standards. Accordingly, specifiers should consider the following qualifiers when assessing double rub ratings: For survey details and additional research, read our White Papers.

Martindale Test Video —. Link to Active This link will always route to the current Active version of the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Because there is a definite need for measuring the relative resistance to abrasion, this is one of the several standardized guides and methods that is useful to help minimize the inherent variation in results that may occur. Number of cycles determines abrasion rating. 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.

However, caution is advised because anomalous results may occur due to uncontrolled factors in manufacturing or other processes.