By content81c70d6e36 | Last updated 16th March 2026

ASTM E162 Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source

ASTM E162 provides a test method to measure the surface flammability of materials when induced by radiant heat and a small pilot flame. It measures the spread of flames and flame intensity, represented on a measured Radiant Panel Flame Spread Index (RPSI), which integrates the movement of the flame front and flame brightness. This test method is crucial in the analysis of materials used in transportation systems (such as railcars and aircraft interiors), in the construction of public buildings, and in any other enclosed environment where flame propagation needs to be reduced. The findings support regulatory compliance and a safer fire environment, where flame retardancy is crucial.

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    ASTM E162 Introduction

    ASTM E162 is a standardized procedure for determining the behavior of the spread of flames of flat materials under a controlled radiant heat source. A vital consideration for materials used in tight confinements, such as aircraft, trains, and buildings, is their surface flammability, as it may pose a threat to property and life due to its rapid transmission. The test aids in the fire safety regulation and assists manufacturers in choosing or certifying materials for flame-retardant use.

    Get Certified ASTM E162 for Uncompromising Quality and Project Success

    The ASTM E162 certification will confirm that the surface flammability of a material will satisfy accepted safety standards. The test is used to test the behavior of materials on radiant heat and the spread of flame. ASTM E162 results are used by industries to incorporate safer materials and ensure adherence to fire regulations during building construction, transport, and industrial equipment.

    Service NameRemarks
    ASTM E162 Testing
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    ASTM E162 Testing Procedure and Requirements

    Heat SourceGas-fired radiant panel
    Pilot FlameUsed to ignite the material
    Test DurationUp to 15 minutes
    Measured OutputRadiant Panel Flame Spread Index (Is)
    Index CalculationBased on flame spread distance, time, and flame brightness
    InterpretationA lower value indicates lower surface flammability and better flame resistance.

    Scope of ASTM E162

    • Tests the surface flammability of material that has been subjected to a source of radiant heat.
    • Determines the flame propagation and thermal release under supervised laboratory conditions.
    • Applicable to building materials, insulation products, and interior components applied in the transportation and infrastructure sectors.

    ASTM E162 Equipment and Sample Preparation

    Specimen DetailsFlat materials such as textiles, laminates, composites, or thermoplastics
    Specimen PreparationA condition at least 24 hours before the test 
    Specimen DimensionsUsually, 6 inch wide × 18 inch long × 1 inch thick

    Use of ASTM E162

    • The manufacturers of the material help decide the behavior of the material to radiant heat.
    • Helps in adherence to fire regulations in buildings and the transportation industries.
    • Helps engineers and designers to use better-performing materials in fire performance.

    Common Challenges and Troubleshooting in ASTM E162

    In order to conduct the ASTM E162 test accurately, it is important to maintain the constant intensity of radiant heat. Differences in sample preparation or positioning can have an impact on flame spread measurements. The technicians need to maintain the environmental conditions and also calibrate the equipment carefully to give reliable and repeatable results.

    ASTM E162 Aggregate Testing Technique Process, and Data Collection

    Technicians put the specimen of material into a furnace that has a radiant heat and subject it to a controlled temperature. They light the sample and watch the fire spreading over. The flammability index is produced by the test system recording the flame progression, heat flux, and time intervals.

    Results and Interpretation of ASTM E162

    Engineers examine the flame spread index and heat release attributes acquired in the course of the test. Reduced values of flame spread indicate better surface burning resistance. Such findings aid manufacturers in the comparison of materials and the establishment of whether products are safe or not.

    Problem & The Solution to ASTM E162

    Unstable amounts of specimen thickness or incorrect mounting may give inaccurate results when carrying out ASTM E162 testing. To address this problem, laboratories use rigorous guidelines on sample preparation and standardized mounting protocols. Calibration of equipment also enhances the accuracy of data.

    Factors to be considered To Test ASTM E162

    Speed

    Quick testing and reporting enable manufacturers to test material safety and avoid delays in the implementation of project deadlines.

    Expertise

    Proper preparation of the specimen, calibration, and interpretation of the result are all ensured by experienced technicians to make sure that the testing of ASTM E162 is accurate.

    Cost

    Laboratory processes are also done in an efficient way, which allows keeping the costs of testing down without violating the requirements of the ASTM E162.

    FAQ's

    Where can I get the astm e162 tested?

    You can share your astm e162 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e162 test to various testing techniques.

    How much do I need to pay for the astm e162 test?

    Please contact us for a detailed quote for your astm e162 testing needs. Cost incurred to carry out different astm e162 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.

    How many samples are required for astm e162?

    The required number of samples or specimens should comply with the procedure given in the astm e162 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

    How much discount can I get on the astm e162 test?

    MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.

    How many days will it take to complete the astm e162 test?

    The turnaround time for astm e162 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.

    Where can I get the astm e162 tested?

    You can share your astm e162 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e162 test to various testing techniques.

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