ASTM D2653-07 (2018) PDF

Full title and description

ASTM D2653-07(2018) — Standard Test Method for Tensile Properties of Elastomeric Yarns (CRE Type Tensile Testing Machines). This standard specifies procedures to determine tensile properties of “as-produced” elastomeric yarns (natural rubber, spandex or other elastomers) using a constant-rate-of-extension (CRE) tensile testing machine; reported properties include force at first filament break, tenacity, elongation, work to break and toughness at first filament break.

Abstract

This test method describes sample conditioning, test-machine settings, test-speed (constant rate of extension), specimen preparation and calculation/reporting of tensile parameters for elastomeric yarns in the approximate range 40–3200 dtex (36–2900 denier). It is intended for acceptance and comparative testing of commercial shipments and for use in manufacturing quality control.

General information

• Status: Reapproved edition D2653-07(2018) (historical edition designation shown as D2653-07R18); subsequent revisions/reapprovals exist in the ASTM catalog.
• Publication date: Reapproved July 1, 2018 (original designation D2653-07 issued 2007).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: 59.080.20 — Yarns / textile testing.
• Edition / version: D2653-07(2018) (designation indicates 2007 original adoption with 2018 reapproval).
• Number of pages: 5 pages (concise test method).

Scope

This standard covers determination of tensile properties of as-produced elastomeric yarns using CRE-type tensile testing machines. It applies to yarns made from natural rubber, spandex or other elastomers in the range 40–3200 dtex (36–2900 denier). It does not apply to covered, wrapped, core-spun yarns or yarns spun from elastomeric staple; SI and U.S. customary units are provided independently.

Key topics and requirements

• Specimen conditioning and preparation for elastomeric yarns.
• Use of a constant-rate-of-extension (CRE) tensile testing machine and specified test speeds.
• Measurement and reporting of: force at first filament break, tenacity at first filament break, elongation at first filament break, work to break and toughness at first filament break.
• Limits of applicability (fiber types, construction restrictions, and linear denier/dtex range).
• Statistical considerations for between-laboratory comparisons and acceptance testing guidance.

Typical use and users

Used by textile and yarn manufacturers, quality-control laboratories, testing houses, textile researchers and procurement/specification engineers to verify tensile strength and elastic behavior of elastomeric yarn lots for processing and end-use performance. Fabric manufacturers use results for machine set-up and material selection.

Related standards

Commonly referenced alongside other ASTM textile test methods and terminology standards (for example ASTM D4848 terminology and related elastomeric yarn test methods such as those addressing cyclic/elastic properties). Users should consult committee D13 (textiles) publications for cross-references and any newer revisions.

Keywords

elastomeric yarn, tensile properties, CRE (constant-rate-of-extension), tenacity, elongation, work to break, toughness, denier, dtex, yarn testing.

FAQ

Q: What is this standard?

A: ASTM D2653-07(2018) is a test method that specifies how to measure tensile parameters of as-produced elastomeric yarns (natural rubber, spandex and similar elastomers) using CRE-type tensile testing machines.

Q: What does it cover?

A: It covers specimen preparation, test-machine settings, test speed, data collection and calculation/reporting of force at first filament break, tenacity, elongation, work to break and toughness for yarns roughly 40–3200 dtex (36–2900 denier). It excludes covered/wrapped/core-spun yarns and elastomeric staple-spun yarns.

Q: Who typically uses it?

A: Textile producers, independent testing laboratories, quality assurance teams, fabric mills and specification engineers who need standardized tensile data for elastomeric yarns.

Q: Is it current or superseded?

A: D2653-07(2018) is the 2007 designation reapproved in 2018; ASTM’s catalog shows subsequent reapproval/revision activity in later years (ASTM’s product listings indicate later reapprovals/revisions in the ASTM catalog). Users needing the absolute latest text should consult ASTM International’s current catalog for any revisions published after 2018.

Q: Is it part of a series?

A: It is part of ASTM Committee D13 (Textiles) test methods and sits alongside other textile mechanical and terminological standards (for example ASTM terminology standards and other yarn/fiber tensile and elastic-property test methods).

Q: What are the key keywords?

A: Elastomeric yarn, tensile, CRE, tenacity, elongation, work to break, toughness, denier, dtex.