ISO 13935-2-2014 PDF

Full title and description

Textiles — Seam tensile properties of fabrics and made‑up textile articles — Part 2: Determination of maximum force to seam rupture using the grab method. This International Standard specifies the grab test procedure for measuring the maximum force required to rupture a sewn seam when the load is applied perpendicular to the seam.

Abstract

ISO 13935-2:2014 defines the grab method for determination of seam maximum force (seam rupture) for straight seams in mainly woven textile fabrics, including those with elastomeric fibres or stretch treatments. The method is intended for use with constant rate of extension (CRE) tensile testing machines and is not normally applicable to geotextiles, nonwovens, coated fabrics, textile‑glass woven fabrics or fabrics made from carbon fibres or polyolefin tape yarns.

General information

• Status: Published.
• Publication date: April 2014.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 61.020 (Clothes); 59.080.30 (Textile fabrics).
• Edition / version: Edition 2 (2014).
• Number of pages: 9 (ISO edition).

Metadata and life‑cycle status as published by ISO.

Scope

This part of ISO 13935 specifies a procedure to determine the maximum force to cause seam rupture for sewn, straight seams when the force is applied perpendicular to the seam (grab test). It applies primarily to woven fabrics (including those with some stretch), and to sewn articles or specimens prepared from fabric samples as agreed between interested parties. The method is restricted to use with CRE testing machines and is not intended for curved seams or for many non‑woven/coated/geotextile constructions.

Key topics and requirements

• Test principle: centre portion of a specimen with a sewn straight seam is gripped and extended perpendicularly until seam rupture; record maximum force (grab test).
• Applicability: mainly woven textile fabrics; limited or unsuitable for geotextiles, nonwovens, coated fabrics, textile‑glass fabrics, carbon‑fibre or polyolefin tape yarn fabrics.
• Equipment: constant rate of extension (CRE) tensile testing machine required.
• Specimen preparation: seams may be taken from finished articles or prepared from fabric samples; avoid selvedges, folds and non‑representative areas.
• Limitations: applicable only to straight seams (not curved) and to the grab test geometry described in the standard.

Summary of principal test requirements and practical limitations.

Typical use and users

Used by textile testing laboratories, garment and upholstery manufacturers, quality assurance teams, product developers and compliance/inspection bodies to verify seam strength and seam performance in apparel, household textiles and made‑up articles where sewn seam integrity is critical. Test results support design choices (seam type, thread, stitch density), quality control, specification compliance and failure analysis.

Related standards

ISO 13935 is a two‑part series: Part 1 (ISO 13935-1:2014) specifies the strip method for seam rupture determination, and Part 2 is the grab method described here. The ISO method has also been adopted as EN/BS standards in many regions (EN ISO / BS EN ISO 13935-2:2014). Users commonly refer to both parts when specifying seam tensile testing for different specimen geometries.

Keywords

seam tensile; seam rupture; grab test; textiles; sewn seams; CRE tensile testing; woven fabrics; seam strength; seam testing; ISO 13935-2.

FAQ

Q: What is this standard?

A: ISO 13935-2:2014 is an international standard that specifies the grab method for determining the maximum force to rupture a sewn, straight seam when loaded perpendicular to the seam.

Q: What does it cover?

A: It covers test preparation, specimen geometry (grab test), required test machine (CRE), test procedure and limitations (mainly woven fabrics; not normally for geotextiles, nonwovens, coated fabrics, certain specialty constructions).

Q: Who typically uses it?

A: Textile and garment test laboratories, manufacturers (apparel, upholstery, technical textiles), QA departments, product developers and compliance bodies use it to assess seam performance and to set or verify product specifications.

Q: Is it current or superseded?

A: The document ISO 13935-2:2014 is the published Edition 2 from April 2014. ISO indicates the standard is monitored in its life cycle and may be subject to review or revision in due course; users should check national or ISO catalogues for any later amendments or a newer edition before relying on the standard for procurement or regulatory compliance.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 13935 series; Part 1 (ISO 13935-1:2014) specifies the strip method for seam rupture testing. Many jurisdictions also publish harmonized EN/BS versions (EN ISO / BS EN ISO 13935).

Q: What are the key keywords?

A: seam tensile, seam rupture, grab method, ISO 13935-2, CRE test, sewn seams, textile testing, woven fabrics.