Flexible cellular polymeric materials - Moulded and extruded sponge or expanded cellular rubber products - Compressibility test on finished parts

This International Standard specifies a method of determining the hardness or compressibility of a material by measuring the compression and/or deformation force on flexible cellular polymeric profiles not less than 3 mm thick.

Matériaux polymères alvéolaires souples — Produits en caoutchouc alvéolaire expansé ou spongieux, moulés et extrudés — Essai de compressibilité sur des produits finis

General Information

Status
Published
Publication Date
25-Oct-2000
Current Stage
9093 - International Standard confirmed
Start Date
16-Oct-2025
Completion Date
03-Jan-2026

Relations

Effective Date
06-Jun-2022
Effective Date
06-Jun-2022
Effective Date
15-Apr-2008

Overview

ISO 11752:2000 specifies a standardized method to determine the hardness or compressibility of flexible cellular polymeric materials, specifically moulded and extruded sponge or expanded cellular rubber products. The test measures compression and/or the deformation force on finished parts with a thickness of not less than 3 mm. The procedure supports consistent evaluation for quality control, material comparison and design validation.

Key points:

  • Applies to flexible cellular polymeric profiles ≥ 3 mm thick
  • Measures compression (mm) and/or test force (N)
  • Results are reported as median values

Key Topics

  • Principle: Compression produced by a defined force applied perpendicular to the test-piece axis, or the force required to deform the specimen to a defined size, is measured.

  • Apparatus: Compression-testing equipment complying with ISO 5893 (grade A) with an indentor covering the entire specimen area and uniform traverse rate between 0.2 mm/s and 0.8 mm/s. Measurement limits in the standard include 0.1 mm for compression and 2% for test force.

  • Test pieces: Unless otherwise agreed, test pieces are 50 mm long (representative cross-sections for extruded sections or finished parts). At least three test pieces should be tested.

  • Conditioning: Test pieces shall be conditioned, undeflected and undistorted, for at least 16 hours in one of the atmospheres defined in ISO 471: either (23 ± 2) °C / (50 ± 5) % RH or (27 ± 2) °C / (65 ± 5) % RH. Testing should not be carried out less than 72 hours after manufacture unless earlier testing meets the specified stability criterion (mean result within ±10% of the 72 h result).

  • Procedure: Measure initial height per ISO 1923. Define zero compression by applying an initial force of 1 N (a lower value may be agreed for very soft materials). Apply the agreed test force or compression (not exceeding 50% of specimen thickness), perform the test within 20 s after applying the initial force, and read results immediately. Do not repeat a test on the same piece within 24 hours.

  • Expression of results: Record compression to 0.1 mm and force to 0.1 N; report the median of results.

Applications

This test method is practical for:

  • Quality control of sponge and expanded cellular rubber components
  • Verifying product performance under compressive loading
  • Supporting material selection and design decisions
  • Ensuring compliance with contractual and regulatory requirements

Related Standards

  • ISO 5893:1993 - Tensile, flexural and compression test equipment (constant rate of traverse)
  • ISO 471:1995 - Temperatures, humidities and times for conditioning and testing
  • ISO 1923:1981 - Determination of linear dimensions

For compliance, include the standardized test report elements from ISO 11752:2000 (reference, material description, number and length of test pieces, conditioning details, test force/compression, indentor speed, median result, deviations and date of test).

Standard

ISO 11752:2000 - Flexible cellular polymeric materials -- Moulded and extruded sponge or expanded cellular rubber products -- Compressibility test on finished parts

English language
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Frequently Asked Questions

ISO 11752:2000 is a standard published by the International Organization for Standardization (ISO). Its full title is "Flexible cellular polymeric materials - Moulded and extruded sponge or expanded cellular rubber products - Compressibility test on finished parts". This standard covers: This International Standard specifies a method of determining the hardness or compressibility of a material by measuring the compression and/or deformation force on flexible cellular polymeric profiles not less than 3 mm thick.

This International Standard specifies a method of determining the hardness or compressibility of a material by measuring the compression and/or deformation force on flexible cellular polymeric profiles not less than 3 mm thick.

ISO 11752:2000 is classified under the following ICS (International Classification for Standards) categories: 83.100 - Cellular materials. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 11752:2000 has the following relationships with other standards: It is inter standard links to ISO 14577-3:2002, ISO 11752:2000/Amd 1:2006; is excused to ISO 11752:2000/Amd 1:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase ISO 11752:2000 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


INTERNATIONAL ISO
STANDARD 11752
First edition
2000-10-15
Flexible cellular polymeric materials —
Moulded and extruded sponge or expanded
cellular rubber products — Compressibility
test on finished parts
Matériaux polymères alvéolaires souples — Produits en caoutchouc
alvéolaire expansé ou spongieux, moulés et extrudés — Essai de
compressibilité sur des produits finis
Reference number
©
ISO 2000
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ii © ISO 2000 – All rights reserved

Contents Page
Foreword.iv
1 Scope .1
2 Normative references .1
3 Principle.1
4 Apparatus .1
5 Test pieces .2
6 Conditioning.2
7 Procedure .2
8 Expression of results .3
9 Test report .3
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 11752 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,
Subcommittee SC 4, Products (other than hoses).
iv © ISO 2000 – All rights reserved

INTERNATIONAL STANDARD ISO 11752:2000(E)
Flexible cellular polymeric materials — Moulded and extruded
sponge or expanded cellular rubber products — Compressibility
test on finished parts
WARNING — Persons using this International Standard should be familiar with normal laboratory practice.
This standard does not purport to address all of the safety problems, if any, associated with its use. It is
the responsibility of the user
...

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