ASTM D3108/D3108M-13
Standard Test Method for Coefficient of Friction, Yarn to Solid Material

Standard No.

ASTM D3108/D3108M-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D3108/D3108M-13(2020)

Latest

ASTM D3108/D3108M-13(2020)

Scope

5.1 Test Method D3108 for the determination of kinetic friction between yarn and solid materials may be used for the acceptance testing of commercial shipments of yarn, but caution is advised since between laboratory precision is known to be poor. Comparative tests as directed in 5.1.1 may be advisable.

5.1.1 If there are differences or practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, test samples that are as homogenous 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. 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 a 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.

5.2 The frictional properties of textile yarns and of machinery components such as yarn guides are of general interest and have many applications. Because the frictional properties of yarns will affect the performance and life of yarn guides, sewing and knitting needles, and other contact surfaces, the modifying effects of surface finishes and lubricants are of special interest. Frictional properties also affect the quality and performance properties of yarns and subsequently of products made from them. As a consequence, frictional properties are of interest in research, control, and product design.

5.3 It is stressed that there is no coefficient of friction for a single body such as a yarn or a surface. A coefficient of friction measures the interaction between two bodies or elements such as a yarn running over a surface.

5.4 Although this method lays down standardized conditions of test, nonstandard conditions may be used for research or diagnosis but should be reported as such.

5.5 This method covers determination of the mean friction over a specified length of yarn.

5.6 Additional information has been reported in the literature.^3,4,5

1.1 This test method covers the measurement of the kinetic frictional properties of a moving yarn in contact with a solid material.

Note 1—For determining yarn-to-yarn friction, refer to Test Method D3412.

1.2 This test method specifies a relative speed of 100 m/min. The test method may be used at other speeds, although with a possible change in precision and coefficient of friction.<......

ASTM D3108/D3108M-13 Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles
• ASTM D1776 Standard Practice for Conditioning and Testing Textiles
• ASTM D1907 Standard Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
• ASTM D2258 Standard Practice for Sampling Yarn for Testing
• ASTM D3412 Standard Test Method for Coefficient of Friction, Yarn to Yarn
• ASTM D4849 Standard Terminology Related to Yarns and Fibers

ASTM D3108/D3108M-13 history

• 2020 ASTM D3108/D3108M-13(2020) Standard Test Method for Coefficient of Friction, Yarn to Solid Material
• 2013 ASTM D3108/D3108M-13 Standard Test Method for Coefficient of Friction, Yarn to Solid Material
• 2007 ASTM D3108-07 Standard Test Method for Coefficient of Friction, Yarn to Solid Material
• 2001 ASTM D3108-01 Standard Test Method for Coefficient of Friction, Yarn to Solid Material
• 2001 ASTM D3108-95 Standard Test Method for Coefficient of Friction, Yarn to Solid Material