Significance and Use
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 sewing thread, unless specified in the individual test method. These test methods are the best available and are used extensively in the trade.
If there are differences of practical significance between reported test results for two laboratories (or more) comparative test should be performed to determine if there is a statistical bias between them using competent statistical assistance. As a minimum, use the samples for such a comparative tests that are as homogeneous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing and randomly assigned in equal numbers to each laboratory. The test results from the laboratories involved should be compared using a statistical test for unpaired data, 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.
1. 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.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D76 Specification for Tensile Testing Machines for Textiles
D123 Terminology Relating to Textiles
D1422 Test Method for Twist in Single Spun Yarns by the Untwist-Retwist Method
D1423 Test Method for Twist in Yarns by Direct-Counting
D1683 Test Method for Failure in Sewn Seams of Woven Apparel Fabrics
D1776 Practice for Conditioning and Testing Textiles
D1777 Test Method for Thickness of Textile Materials
D1907 Test Method for Linear Density of Yarn (Yarn Number) by the Skein Method
D2256 Test Method for Tensile Properties of Yarns by the Single-Strand Method
D2258 Practice for Sampling Yarn for Testing
D2724 Test Methods for Bonded, Fused, and Laminated Apparel Fabrics
D3693 Specification for Labeled Length per Holder of Sewing Thread
D3823 Practice for Determining Ticket Numbers for Sewing Threads
D3940 Test Method for Bursting Strength (Load) and Elongation of Sewn Semas of Knit or Woven Stretch Textile Fabrics
D4848 Terminology Related to Force, Deformation and Related Properties of Textiles
D4849 Terminology Related to Yarns and Fibers
D6193 Practice for Stitches and Seams
AATCC Standards
EvaluationProcedure3 Chromatic Transference Scale
Keywords
breaking strength; strand; colorfastness; diameter; dimensional change; length; sewing thread; textile strand; twist; twist balance; yarn number; Yarn number; Breaking strength/tenacity--textile fabrics/fibers; Colorfastness; Diameter--textile fabrics/fibers; Dimensional change; Fiber length; Sewing thread; Shrinkage--textile fabrics/fibers; Textile fibers; Twist--textiles; Twist balance ;
ICS Code
ICS Number Code 59.080.20 (Yarns)
DOI: 10.1520/D0204-02R10E01
ASTM International is a member of CrossRef.
Citing ASTM Standards
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