ASTM-D4974/D4974M 2022(Redline)

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D4974/D4974M-22 Standard Test Method for Hot Air Thermal Shrinkage of Yarn and Cord Using a Thermal Shrinkage Oven (Redline)

Published By	Publication Date	Number of Pages
ASTM	2022

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Categories: 59.080.20 - Yarns, ASTM

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Description

ASTM D4974/D4974M-22

Redline Standard: Standard Test Method for Hot Air Thermal Shrinkage of Yarn and Cord Using a Thermal Shrinkage Oven

ASTM D4974/D4974M

Scope

1.1 This test method covers the measurement of shrinkage of yarns and cords when exposed in a thermal shrinkage oven.

1.2 This test method is applicable to yarns and cords made of nylon, polyester, and other polymers not detrimentally affected by the temperature used and with linear densities in the range from 20 to 700 tex [180 to 6300 denier].

1.2.1 Yarns or cords for testing may be taken from yarn or cord packages or from fabrics.

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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Referee decisions are to use SI units.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 8.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

shrinkage; thermal; tire cord;

ICS Code

ICS Number Code 59.080.20 (Yarns)

DOI: 10.1520/D4974_D4974M-22

Additional information

Standard Title	D4974/D4974M-22 Standard Test Method for Hot Air Thermal Shrinkage of Yarn and Cord Using a Thermal Shrinkage Oven (Redline)
Published Code	ASTM
Publication Date	2022
ICS Codes	59.080.20 - Yarns