ASTM D2583 Barcol Hardness Test

ASTM D2583 Barcol Hardness Test

ASTM D2583 test determines indentation hardness for both reinforced and non-reinforced rigid plastic materials, tested as either a specimen or a fabricated part. Barcol impressor hardness tester instrument is used for the test. Barcol numbers are recorded from the instrument to give results.

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    ASTM D2583 Barcol Hardness test determines indentation hardness for both reinforced and non-reinforced rigid plastic material. ASTM D2583 test determines the hardness of both fabricated parts and individual specimens. It is difficult to squeeze rigid plastics, however, depending upon the requirement, plastics can be reinforced with other materials or used without reinforcing for different applications.

    Test Procedure:

    ASTM D2583 test is performed by using a Barcol impressor hardness tester instrument. The test specimen is placed under the indenter of this instrument, and a uniform amount of pressure is applied to the specimen to get maximum dial indication in the Barcol hardness tester. Depth of penetration is recorded and further converted into absolute Barcol numbers by the instrument.

    Specimen size:

    Barcol Hardness ASTM D2583 test uses plastic specimens with a minimum size of 1/16 of an inch.


    The result is expressed as Barcol numbers as recorded from the instrument.


    ASTM D2583 is a standard test method for indentation hardness of rigid plastics by means of a barcol impressor.


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