DIN EN ISO 1421 2017-03 PDF

Full title and description

STB DIN EN ISO 1421 2017-03 — Rubber- or plastics-coated fabrics — Determination of tensile strength and elongation at break (ISO 1421:2016); German adoption as EN ISO 1421:2016, published by DIN on 1 March 2017. The document specifies standardized test methods for measuring tensile strength and elongation at break of fabrics coated with rubber or plastics.

Abstract

This standard defines two test methods for coated fabrics: Method 1 (strip test) for determining tensile strength and elongation at break, and Method 2 (grab test) for determining tensile strength only. It applies to specimens conditioned in specified standard atmospheres and to wet specimens, and it requires a tensile-testing machine operating at a constant rate of extension (CRE). The 2016/2017 edition updates and replaces the previous 1998 edition and clarifies specimen dimensions, reference points and handling of test results.

General information

• Status: Current (published/adopted document in force; replaces the 1998 edition)
• Publication date: 1 March 2017 (DIN adoption of EN ISO 1421:2016)
• Publisher: Deutsches Institut für Normung (DIN); identical to ISO 1421:2016 / EN ISO 1421:2016
• ICS / categories: 59.080.40 (Coated fabrics; coated textiles)
• Edition / version: EN ISO 1421:2016 adopted as DIN EN ISO 1421:2017-03 (edition replacing DIN EN ISO 1421:1998-08)
• Number of pages: 21–22 pages (typical published national versions list 21 or 22 pages)

Scope

The standard specifies two procedures for the determination of tensile properties of fabrics coated with rubber or plastics: (1) the strip test to determine both tensile strength and elongation at break and (2) the grab test to determine tensile strength only. It covers test-piece preparation, climatic conditioning (including tests on wet specimens), test-machine requirements (constant rate of extension), specimen dimensions and positioning, test speeds, calculation of results and treatment of abnormal test outcomes. It is intended for general-purpose assessment and quality control of coated textile products.

Key topics and requirements

• Two test methods: strip (Method 1) and grab (Method 2).
• Use of a constant rate of extension (CRE) tensile-testing machine.
• Specified specimen dimensions and reference points (including additional narrow widths introduced in the 2016 revision).
• Conditioning in specified standard atmospheres and procedures for wet test specimens.
• Detailed procedures for clamping, pre-tension, test speed and measurement of elongation at break.
• Calculation and reporting of tensile strength, elongation at break and statistical treatment of results.
• Guidance on handling and exclusion of faulty or invalid test results.

Typical use and users

Used by manufacturers of rubber- or plastics-coated fabrics (including technical textiles and artificial leather), independent testing laboratories, quality assurance personnel, product designers and procurement/specification engineers. Typical applications include production quality control, incoming inspection, product development, certification testing and comparative material assessments.

Related standards

Relevant or referenced documents include ISO 1421:2016 (identical international text), EN ISO 1421:2016 (European adoption), the superseded DIN EN ISO 1421:1998-08, and standards referenced within the text for conditioning and special test conditions (for example ISO/standards addressing standard atmospheres and laboratory conditioning). ISO 2231 (handling of special conditions in rubber testing) is referenced for particular conditions and handling instructions within the document.

Keywords

coated fabrics; rubber-coated; plastics-coated; coated textiles; tensile strength; elongation at break; strip test; grab test; CRE (constant rate of extension); specimen conditioning; wet testing; coated textile testing.

FAQ

Q: What is this standard?

A: It is the DIN-adopted European/international standard (DIN EN ISO 1421:2017-03) that specifies test methods for determining tensile strength and elongation at break of rubber- or plastics-coated fabrics (ISO 1421:2016).

Q: What does it cover?

A: It covers two test procedures (strip and grab), specimen preparation and dimensions, conditioning (including wet specimens), test-machine requirements (CRE), test speeds, measurement and calculation of tensile strength and elongation at break, and handling of invalid results.

Q: Who typically uses it?

A: Manufacturers of coated textiles and artificial leather, test laboratories, QA/QC departments, product developers, and procurement/specification writers who need standardized tensile-property data for coated fabrics.

Q: Is it current or superseded?

A: The edition published/adopted in March 2017 (EN ISO 1421:2016 adopted as DIN EN ISO 1421:2017-03) supersedes the earlier 1998 edition. Users should verify with their national standards body or DIN for any subsequent amendments, corrigenda or newer editions after 1 March 2017.

Q: Is it part of a series?

A: It forms part of the body of standards addressing test methods for rubber and coated textiles and is related to other ISO/EN/DIN standards that cover conditioning and general testing practices; it should be used alongside referenced standards that define laboratory atmospheres and specimen handling.

Q: What are the key keywords?

A: Coated fabrics, rubber-coated, plastics-coated, tensile strength, elongation at break, strip test, grab test, CRE, specimen conditioning.