Flexible cellular polymeric materials - Determination of compression set under humid conditions

This International Standard specifies a method for determining the compression set of flexible cellular materials under humid conditions. This method consists of maintaining the test piece under specified conditions of time, temperature, humidity and constant compressive strain and determining the effect on the thickness of the test piece after a specified recovery period.

Matériaux polymères alvéolaires souples — Détermination de la déformation rémanente après compression dans des conditions humides

General Information

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

Overview

ISO 13362:2000 specifies a standardized method for determining the compression set of flexible cellular polymeric materials under humid conditions. This International Standard, developed by ISO Technical Committee ISO/TC 45, provides a procedure to assess how such materials recover after being compressed in a controlled high-humidity environment. The test evaluates the residual deformation-how much the material fails to return to its original thickness-when subjected to specified time, temperature, humidity, and compressive strain parameters.

Understanding the compression set under humid conditions is critical for quality assurance and performance evaluation of flexible cellular polymers, such as foams used in sealing, cushioning, and insulation applications. This ensures materials retain their structural integrity and functional properties when exposed to moist environments.

Key Topics

  • Compression Set Definition: The percentage difference between initial thickness and post-recovery thickness after compression at high humidity.
  • Test Conditions:
    • Temperature: 40 ± 1 °C
    • Relative Humidity: 95–100%
    • Compression: 70 ± 0.5% of original thickness
    • Duration: 22 hours in humid oven, followed by 15 minutes recovery.
  • Test Piece Preparation:
    • Size: Parallelepiped with 100 ± 2 mm square surface and 50 ± 1 mm thickness.
    • Conditioning: At least 16 hours at controlled temperature and humidity before testing.
  • Apparatus Used:
    • Stainless steel compression device with flat plates and adjustable spacer.
    • Dial gauge for thickness measurement.
    • Humidity cabinet capable of maintaining specified environmental parameters.
  • Calculation Formula:
    [ CSH = \frac{d_0 - d_r}{d_0} \times 100 ]
    where (d_0) is the original thickness and (d_r) is the recovered thickness after compression and humidity exposure.
  • Test Reporting Requirements: Include material description, conditioning details, test results, deviations, and test date.

Applications

ISO 13362:2000 is essential for manufacturers, testing laboratories, and quality control teams working with flexible cellular polymers, particularly in industries such as:

  • Automotive: Evaluation of seals, gaskets, and vibration dampers exposed to humid environments.
  • Construction: Testing foam insulation and weatherstripping materials for durability and compression recovery.
  • Consumer Products: Assessment of cushioning materials in furniture, footwear, and sports equipment.
  • Electronics: Ensuring protective foams used in humid conditions retain shape and function.
  • Aerospace: Verifying material performance in variable humidity conditions during operation.

Using this standardized method helps ensure product reliability, optimize material selection, and reduce failure risk due to moisture-related deformation.

Related Standards

  • ISO 1923:1981 – Determination of linear dimensions in cellular plastics and rubbers, referenced for thickness measurement techniques.
  • Other compression set test methods under dry or specified temperature conditions for cellular materials.
  • Standards related to mechanical and environmental testing of polymeric foams and rubber products.

By aligning with ISO 13362:2000, organizations can maintain consistency in testing flexible cellular polymeric materials under humid conditions, ensuring products meet international quality benchmarks and perform reliably in moisture-prone applications.

Standard

ISO 13362:2000 - Flexible cellular polymeric materials -- Determination of compression set under humid conditions

English language
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Frequently Asked Questions

ISO 13362:2000 is a standard published by the International Organization for Standardization (ISO). Its full title is "Flexible cellular polymeric materials - Determination of compression set under humid conditions". This standard covers: This International Standard specifies a method for determining the compression set of flexible cellular materials under humid conditions. This method consists of maintaining the test piece under specified conditions of time, temperature, humidity and constant compressive strain and determining the effect on the thickness of the test piece after a specified recovery period.

This International Standard specifies a method for determining the compression set of flexible cellular materials under humid conditions. This method consists of maintaining the test piece under specified conditions of time, temperature, humidity and constant compressive strain and determining the effect on the thickness of the test piece after a specified recovery period.

ISO 13362:2000 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.

You can purchase ISO 13362:2000 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 13362
First edition
2000-11-01
Flexible cellular polymeric materials —
Determination of compression set under
humid conditions
Matériaux polymères alvéolaires souples — Détermination de la
déformation rémanente après compression dans des conditions humides
Reference number
©
ISO 2000
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ii © ISO 2000 – All rights reserved

Contents Page
Foreword.iv
1 Scope .1
2 Normative reference .1
3 Term and definition .1
4 Principle.1
5 Apparatus .2
6 Test pieces .2
7 Conditioning.2
8 Procedure .2
9 Calculation.2
10 Precision.3
11 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 13362 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 13362:2000(E)
Flexible cellular polymeric materials — Determination of
compression set under humid conditions
WARNING — Persons using thi
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