ASTM D8007-24 PDF

Full title and description

ASTM D8007-24 — Standard Test Method for Wale and Course Count of Weft Knitted Fabrics. This test method specifies procedures for measuring the wale (vertical) and course (horizontal) counts of weft-knit fabrics made on circular or flat-bed knitting machines (single- and double-knit categories). It defines units, specimen selection, counting technique and reporting requirements so results are traceable and comparable across laboratories.

Abstract

ASTM D8007-24 gives a standardized procedure to determine the number of wales and courses in weft knitted fabrics. The method requires separate reporting of wale and course counts, uses inch–pound units as the primary units (with SI conversions for information), and excludes warp knit fabrics (for example tricot and raschel). It is intended for use in quality control, specification compliance and interlaboratory comparison.

General information

• Status: Active (current standard).
• Publication date: November 1, 2024 (D8007-24).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 59.080.30 (Textile fabrics).
• Edition / version: D8007-24 (2024 edition), superseding earlier D8007 editions.
• Number of pages: 7 pages.

Scope

This test method covers measurement of wale and course counts of weft knitted fabrics (single- and double-knit types such as jersey, single-pique, rib, interlock and swiss pique). It is not applicable to warp knit fabrics such as tricot or raschel. Wale and course counts are reported separately; inch–pound units are the standard and SI conversions are informational only. The method may be used to determine whether fabrics meet fabric-count tolerances in related specifications.

Key topics and requirements

• Definition of wale and course and guidance on distinguishing single- and double-knit constructions.
• Specimen selection and preparation to ensure representative, homogeneous samples for counting.
• Counting procedure and tools (visual counting, magnification/counters as required) and a requirement to report wale and course counts separately, typically per inch (inch–pound units standard).
• Instructions on unit usage: inch–pound units are normative; SI conversions provided for information only.
• Notes on interlaboratory comparison and statistical checks: where practical differences between labs appear, comparative testing and statistical bias assessment are recommended.
• Scope limits: explicitly not applicable to warp knits (tricot, raschel).

Typical use and users

Used by textile testing laboratories, quality control/assurance teams in fabric mills and garment manufacturers, product specifiers, technical development groups and standards committees. Typical applications include incoming-material inspection, production QC, fabric specification verification, research on knit structure, and interlaboratory comparisons for method validation.

Related standards

Referenced and related ASTM standards include test methods and specifications for fabric counts and properties (for example ASTM D3775 — End (Warp) and Pick (Filling) Count of Woven Fabrics, and fabric specification documents such as ASTM D3887). D8007 is maintained by ASTM Committee D13 (textiles) and is linked in the D13 series of textile test methods.

Keywords

wale count, course count, weft knitted fabrics, knit fabric, fabric count, textile testing, D8007-24

FAQ

Q: What is this standard?

A: ASTM D8007-24 is the ASTM International test method that defines how to measure and report the wale and course counts of weft-knitted fabrics.

Q: What does it cover?

A: It covers specimen selection, counting procedure and reporting for wale and course counts of weft knit fabrics (single- and double-knit groups). It excludes warp-knit constructions. Inch–pound units are the normative units.

Q: Who typically uses it?

A: Textile test laboratories, fabric mills, garment manufacturers, QC teams, product developers and standards bodies who need a repeatable method for fabric count measurement and for contractual/specification verification.

Q: Is it current or superseded?

A: Current (active). The 2024 edition (D8007-24) replaces earlier versions of D8007 (for example the 2015/2019 revisions). Check the publisher for the latest status or amendments.

Q: Is it part of a series?

A: It is part of ASTM Committee D13 (Textiles) methods and is associated with other fabric-count and textile test methods in the D13 series (for example D3775). It is maintained within the Book of Standards volume covering textiles.

Q: What are the key keywords?

A: Wale count; course count; weft knitted fabric; knit structure; fabric count; textile testing; D8007-24.