ASTM International - ASTM D204-02(2021)

Standard Test Methods for Sewing Threads

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Organization:	ASTM International
Publication Date:	1 July 2021
Status:	active
Page Count:	13
ICS Code (Yarns):	59.080.20

significance And Use:

4.1 Acceptance Testing-The test methods in Test Methods D204 for the determination of the properties of sewing thread are considered satisfactory for acceptance testing of commercial shipments of... View More

scope:

1.1 These test methods can be used to evaluate sewing threads of any fiber.

1.1.1 The test methods in this standard are intended to evaluate only sewing thread taken from thread holders.

1.2 These test methods only provide for the measurement of sewing thread physical properties. These test methods do not address any other properties that may be important for the satisfactory performance of sewing threads under particular end use conditions.

1.3 These test methods can be used to measure the following properties:

	Sections
Colorfastness to Drycleaning	73 - 83
Colorfastness to Laundering	62 - 72
Colorfastness to Water Migration	84 - 94
Diameter	43 - 50
Length per Thread Holder	34 - 42
Shrinkage, Single Strand	51 - 61
Dry Heat	58.1
Boiling Water	58.2
Strength and Elongation	15 - 21
Single Strand-Conditioned	19.1.1
Single Strand-Wet	19.1.2
Loop Strength	19.2
Knot Strength	19.3
Twist	22 - 27
Twist Balance	28 - 33
Yarn Number	7 - 14

Note 1: For methods covering tests on prepared seams, refer to Test Methods D1683/D1683M and D3940.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.5 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.

1.6 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.