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: Vizahn Jugrel
Country: Luxembourg
Language: English (Spanish)
Genre: Sex
Published (Last): 7 December 2013
Pages: 188
PDF File Size: 9.81 Mb
ePub File Size: 8.55 Mb
ISBN: 859-7-53176-168-5
Downloads: 21099
Price: Free* [*Free Regsitration Required]
Uploader: Sazragore

As a minimum, the test samples should be used that are as homogenous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Specific instances have been described. ACT reminds you that there are many points to consider when specifying textiles. However, caution is advised because anomalous results may occur due to uncontrolled factors in manufacturing or other processes.

Link to Active This link will always route to the current Active version d1457 the standard. For survey details and additional research, read our White Papers.

Accordingly, specifiers should consider the following qualifiers when assessing double rub ratings: Other procedures for measuring the abrasion resistance of textile fabrics are given in: Because dd4157 is a definite need adtm 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.

Option 4—Breaking Strength Loss. Fabric samples are mounted flat and rubbed in a figure eight like motion using a piece of worsted wool cloth as the abradant. This is an oscillating test. As a minimum, test samples that are as 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.

Other fabrics with established test values may be used for this purpose. For more information please refer to abrasion white papers on the ACT website.

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

Studies have shown that Wyzenbeek test results on the same fabric can and do vary significantly from test to test. In fact, Wyzenbeek results abovedouble rubs have not been shown to be astmm indicator of increased fabric lifespan. This test can also increase the uniformity of the abrading action by 4d157 away abrasion debris and preventing the build up of broken fibers that can interfere with the proper progression of the tests.

  COMPRO LUEGO EXISTO PDF

Combining values from the two systems may result in nonconformance with the specification. Therefore, ACT does not recommend using absolute numbers for comparision. Association of Contact Textiles Website.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

Historical Version s – view previous versions of standard. Wyzenbeek results abovedouble rubs have not been shown to be an indicator of increased lifespan. 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.

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. 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 relationship between laboratory abrasion tests and actual wear in the intended 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.

Historical Version s – view previous versions of standard. 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 asttm and the abradant; and the dimensional changes in the specimen.

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.

The measurement of the relative amount of abrasion may also be affected by the method of evaluation and may be influenced by the judgment of the operator. Link to Active This link will always route to the current Active version of the standard. Wyzenbeek — New Test Video. 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 results.

  ALBERTO RUY SANCHEZ LOS JARDINES SECRETOS DE MOGADOR PDF

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. Wyzenbeek — New Test Video View: Whenever possible all materials that are to be compared with each other should be tested under the same pressure and tension. Make sure to check a new post from the Association of Contract Textiles regarding acceptable abrasion standards.

The results obtained from the use of this instrument assist in evaluating these factors relative to the awtm serviceability of the final textile product in specific end uses. The relationship varies with different end uses, and different factors may be necessary in any calculation of v4157 durability from specific abrasion data.

Understanding Abrasion Testing

A Wyzenbeek machine is used for this test allowing samples of the test fabric to be pulled tight in a frame and held stationary. This explains the requirements for both residential and contract spaces.

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 ofdouble rubs: Martindale Test Video —.

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.

This test method may not be usable for some fabric constructions.

A fabric with twice the number of abrasion cycles does not indicate double the service life.