ASTM D1822 Standard Test Method for Tensile-Impact Energy to Break Plastics and Electrical Insulating Materials

The ASTM D1822 test measures the energy required to break electrically insulating or plastic specimens under standard tension impact, evaluating resistance to combined tensile and impact pressures, toughness, and durability. The ASTM D1822 test calculates the energy needed to break a plastic specimen based on these combined forces. The ASTM D1822 test method covers the determination of the energy required to rupture standard tension-impact specimens of plastic materials. Rigid materials are suitable for testing by the ASTM D1822 method as well as specimens that are too flexible or thin to be tested in accordance with other impact test methods.


Introduction to ASTM D1822

Tensile-impact energy is the energy required to break a standard tension-impact specimen in tension by a single swing of a standard calibrated pendulum under a set of standard conditions. ASTM D1822 evaluates plastics’ tensile-impact resistance, crucial for suitability in engineering and industrial settings. Subjecting standardized specimens to controlled forces provides insights into material toughness, mechanical stress resistance, and performance. ASTM D1822 helps manufacturers, researchers, and engineers select suitable materials for specific applications, enhance product design, and ensure safety and reliability.

The energy for fracture is a function of the force times the distance through which the force operates. Therefore, given the same specimen geometry, it is possible during ASTM D1822 test that one material will produce tensile-impact energies for fracture due to a large force associated with a small elongation, and another material will produce the same energy for fracture result due to a small force associated with a large elongation. The ASTM D1822 test method may not correlate with other tests or end uses unless such a correlation has been established by experiment

ASTM D1822 Test Procedure

Specimen SelectionASTM D1822 specimen considerations include composition, processing method, and additives. A minimum of five specimens is recommended for statistical significance and reliable results.
Test Setup and ExecutionTest specimens are curated in a controlled environment to prevent moisture or temperature variations. The ASTM D1822 testing machine applies tensile and impact forces simultaneously, and the specimen is struck by a striker or pendulum. Data collection, calculations, analysis, and reporting are conducted, and a test report is generated. Repeatability is ensured by repeating the test with additional specimens from the same material batch.

ASTM D1822 Test Specimens

Specimen DetailsASTM D1822 test specimens are made from plastic with a “dumbbell” or “dogbone” shape, ensuring stress concentration for accurate, consistent results in tensile-impact resistance testing.
Specimen DimensionsThe ASTM D1822 standard defines dumbbell-shaped specimens with dimensions of 115mm in length, 12.5mm in width at the center, 6.4mm in width at the narrow portion, and 3.2mm in thickness. These dimensions may vary depending on the type of plastic and standard version.

ASTM D1822 Test Results

The test measures the peak force applied to a specimen, indicating its resistance to tensile and impact forces. It calculates the total energy absorbed by the specimen before failure, indicating its capacity to dissipate energy and resist crack propagation or rupture. The test also measures the tensile strength, elongation at break, modulus of elasticity, and type of failure, indicating the material’s ductility and stiffness. The test also determines the material’s resistance to deformation and stiffness.

Tests Related to ASTM D1822

Important tests relevant to ASTM D1822 include ASTM D256 for Determining the Izod Pendulum Impact Resistance of Plastics, ASTM D638 (Standard Test Method for Tensile Properties of Plastics), and ASTM D4812 (Standard Test Method for Unnotched Cantilever Beam Impact Resistance of Notched Specimens of Plastics).


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The required number of samples or specimens should comply with the procedure given in the astm d1822 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.

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The turnaround time for astm d1822 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 d1822 tested?

You can share your astm d1822 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 d1822 test to various testing techniques.

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