SIST EN ISO 20932-2:2020 PDF

Name: SIST EN ISO 20932-2:2020 — Textiles - Determination of the elasticity of fabrics - Part 2: Multiaxial tests (ISO 20932-2:2018)
SKU: SIST EN ISO 20932-2:2020
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Textiles - Determination of the elasticity of fabrics - Part 2: Multiaxial tests (ISO 20932-2:2018)

Название (английский):

SIST EN ISO 20932-2:2020

Textiles - Determination of the elasticity of fabrics - Part 2: Multiaxial tests (ISO 20932-2:2018)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 25
Дата публикации:: 7 апреля 2020 г.
ICS:: 59.080.01
Технический комитет:: ITEK - Textile and textile products

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Описание (английский):

This document specifies the test methods which can be used to measure elasticity and related properties of fabrics when they undergo a deformation of their surface. Two methods are specified: a dynamic method (method A) and a static method (method B). This document does not apply to narrow fabrics. The results obtained cannot be compared. The choice of test method are agreed between parties and indicated in the test report.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 20932-2:2020 (ISO 20932-2:2018) specifies standardized multiaxial test methods for measuring the elasticity of fabrics when their surface is deformed in multiple directions. Adopted by CEN, this part of the ISO 20932 series defines two distinct test procedures - Method A (dynamic) and Method B (static) - for evaluating properties such as maximum deformation, residual deformation (bagging), maximum force and modulus. This standard does not apply to narrow fabrics, and results from the two methods are not directly comparable; the choice of method must be agreed between parties and reported.

Key topics and requirements

Scope and limitations

Multiaxial surface deformation tests for textile fabrics.
Excludes narrow fabrics; results from Methods A and B cannot be compared.

Two specified methods

Method A - Dynamic test: cyclic loading and unloading to characterise elastic response over repeated deformation cycles. Includes apparatus, specimen clamping, recording and result calculations.
Method B - Static test: a static hemispherical probe is used to produce a fixed distension, with measurement of residual deformation after an agreed recovery time. Includes preliminary parameter selection and actual test procedures.

Terminology and measured properties

Terms defined include elasticity, maximum deformation, residual deformation (bagging), maximum force, modulus and cycle.

Test conditions and traceability

Sampling, specimen preparation and environmental conditioning are specified (reference to ISO 139 for standard atmospheres).
Equipment calibration and measurement management align with normative references (e.g., ISO 7500-1, ISO 10012).

Reporting

The test report must identify the method used and provide the agreed testing parameters; differences between method outcomes must be noted.

Applications and users

Who uses it

Textile and technical textile manufacturers, R&D labs, quality control departments, independent test houses and garment engineers.

Practical uses

Compare fabric constructions for stretch/recovery in upholstery, apparel, medical textiles and industrial textiles.
Inform product design, performance specifications and supplier agreements where surface deformation and recovery are critical (e.g., seat covers, elastic garments, protective fabric laminates).
Establish reproducible test records for quality assurance and material selection.

Related standards

ISO 20932-1 - Part 1: Strip tests (uniaxial).

ISO 139 - Standard atmospheres for conditioning and testing.

ISO 7500-1, ISO 10012 - calibration and measurement management references.

Keywords: EN ISO 20932-2:2020, ISO 20932-2, fabric elasticity testing, multiaxial tests, dynamic method, static method, textile testing standard, residual deformation, bagging.

SIST EN ISO 20932-2:2020 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 20932-2:2018

Textiles — Determination of the elasticity of fabrics — Part 2: Multiaxial tests

BS EN ISO 20932-2:2020

Textiles. Determination of the elasticity of fabrics. Multiaxial tests.

BS EN ISO 13904:2016

Animal feeding stuffs. Determination of tryptophan content.

SIST EN ISO 7500-1:2018

Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compr…

SIST EN ISO 10012:2026

Quality management - Requirements for measurement management systems (ISO 10012:2026)

ISO 20932-1:2018/Amd 1:2021

Textiles — Determination of the elasticity of fabrics — Part 1: Strip tests — Amendment 1