ASTM D3412/D3412M-13
Standard Test Method for Coefficient of Friction, Yarn to Yarn

Standard No.

ASTM D3412/D3412M-13

Release Date

2013

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D3412/D3412M-13(2020)

Latest

ASTM D3412/D3412M-13(2020)

Scope

5.1 This test method for testing yarn-to-yarn friction is being used, but is not recommended, for acceptance testing of commercial shipments since between-laboratory precision is known to be poor.

5.1.1 In some cases, the purchaser and supplier may have to test a commercial shipment of one or more specific materials by the best available method even though the method has not been recommended for acceptance testing of commercial shipments. In case of a dispute arising from differences in reported test results when using Test Method D3412/D3412M for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student''s t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration to the known bias.

5.2 This test method is intended for the determination of yarn-to-yarn boundary friction coefficients measured over a specified length of yarn.

5.3 The test method is useful for quality control, research, and the characterization of yarn boundary lubricants.

Note 3—Because the geometry of the yarns is different, Options 1 and 2 should not be expected to give the same numerical values on the same yarns.

1.1 This test method covers the measurement of frictional properties for both continuous filament and spun-staple yarns under boundary friction conditions.

1.2 This test method has been used with yarns having linear densities ranging from 1.5 to 400 tex, but may be used with yarns outside these ranges [15 to 3600 denier].

Note 1—For coefficient of friction, yarn to metal, see Test Method D3108.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practice......

ASTM D3412/D3412M-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 D3108/D3108M Standard Test Method for Coefficient of Friction, Yarn to Solid Material
• ASTM D4849 Standard Terminology Related to Yarns and Fibers

ASTM D3412/D3412M-13 history

• 2020 ASTM D3412/D3412M-13(2020) Standard Test Method for Coefficient of Friction, Yarn to Yarn
• 2013 ASTM D3412/D3412M-13 Standard Test Method for Coefficient of Friction, Yarn to Yarn
• 2007 ASTM D3412-07 Standard Test Method for Coefficient of Friction, Yarn to Yarn
• 2001 ASTM D3412-01 Standard Test Method for Coefficient of Friction, Yarn to Yarn
• 2001 ASTM D3412-95 Standard Test Method for Coefficient of Friction, Yarn to Yarn