Understanding ASTM D3574: Standard Test Methods for Flexible Cellular Materials

Ensuring the quality and durability of flexible cellular materials is crucial in various industries, including automotive, furniture, and bedding. The ASTM D3574 standard outlines the test methods to evaluate properties such as tensile strength, compression, and resilience of polyurethane foams. This blog provides a detailed overview of these test methods and their importance.

Overview of ASTM D3574

ASTM D3574 is a comprehensive standard that specifies various test methods for flexible cellular materials, such as slab, bonded, and molded urethane foams. These tests help manufacturers ensure their products meet industry standards for quality and performance.

Key Test Methods

  1. Tensile Testing

    • Procedure: Measures the force required to stretch the foam until it breaks.
    • Importance: Determines the material's strength and elongation properties.
    • IDM Product: Universal Testing Machine
      • Details: The IDM Universal Testing Machine is designed to perform both tensile and compression tests, providing precise results and ensuring compliance with ASTM standards. It features a robust frame, high-precision load cells, and user-friendly software for accurate data collection and analysis.
  2. Compression Testing

    • Procedure: Involves compressing the foam to a specific percentage of its original thickness.
    • Importance: Evaluates the foam's load-bearing capacity and deformation characteristics.
    • IDM Product: Foam Compression Tester
      • Details: The IDM Foam Compression Tester is equipped with a closed-loop microcomputer control system that drives a ball screw and nut for vertical movement. It features a load auto-zeroing function, a safety overload function, and a test area of 500mm wide, not restricted at the front and rear. The system includes a PC with a 19” flat-screen monitor and software that provides real-time data display and analysis, allowing for precise measurements of ILD and IFD in accordance with ASTM D3574 standards​
  3. Resilience Testing

    • Procedure: Measures the foam's ability to return to its original shape after compression.
    • Importance: Indicates the material's durability and longevity.
    • IDM Product: Digital Foam Resilience Tester
      • Details: The IDM Digital Foam Resilience Tester offers accurate assessments of foam samples' rebound characteristics. The tester is equipped with advanced software that allows for the programming of test parameters, real-time data display, and statistical analysis. It helps manufacturers ensure that their foam products meet the required resilience standards.

Test Applications

  • Automotive seating
  • Furniture cushioning
  • Bedding and mattresses
  • Carpet underlay
  • Foam components in various industries


Adhering to ASTM D3574 ensures that flexible cellular materials meet high-quality standards, enhancing product reliability and customer satisfaction. By utilizing IDM Instruments' advanced testing equipment, manufacturers can achieve accurate and reliable results, improving their quality control processes.

Keywords: ASTM D3574, foam testing, tensile testing, compression testing, resilience testing, polyurethane foam, quality control, flexible cellular materials.

Related Testing Instruments


Universal Testing Machine

Universal Testing Machine

The Universal Testing Machine or the UTM is dual-testing machine can perform compression and tensile testing.  The Universal testing machine enables measurement of firmness and harness. It is based on a physical property called the indentation force deflection (IFD).  Which is calculated by determining the force required to deflect a test piece. Which is a percentage of its original thickness using a circular indentor. This applies a force, while also recording the degree of...
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Foam Compression Tester

Foam Compression Tester

The Foam Compression Tester uses deflection force on the flexible cellular polyurethane. This instrument allows performing the ILD or IFD of flexible cellular polyurethane. Which is a common test as per ASTM, ISO, AS, BS international standards including ASTM D3574. This instrument offers a variety of software features that allow the programming of many parameters. This is because it uses our Universal Tester program. This software package allows the operator to conduct a large range of tests...
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Foam Resilience Tester

Foam Resilience Tester

Foam Resilience Tester also known as ball rebound resiliennce tester determines the resilience of flexible cellular polyurethane. The machine provides results of foam rebound performance. After the load ball has its impact on it.  The procedure starts with dropping a steel ball vertically on to a test piece. And then measure the rebound height to express as a percentage of the height dropped. When in operation, the Foam Resilience Tester drops a steel ball vertically on to a test...
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