ASTM D7912 Resistance of Finish to Heat Aging

ASTM D7912 test method determines whether a leather finish is resistant to cracking, flaking, or turning sticky after ag ing. The standard values are reported in the SI unit.... Read More

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    Scope:

    ASTM D7912 test procedure is useful for a variety of finished leathers. Finish stability is also important to find the application and function of leather.

    Procedure:

    The finish is visually evaluated after the test specimen has been exposed to prolonged heating and then flexed manually in this ASTM D7912 test procedure.

    Video 01: Leather testing

    Specimen size:

    The temperature should be 55 to 60 °C. The suggested sample size of leather is 10 cm2.

    Data

    Changes in stress-strain properties are calculated as, 

    P =[A-O÷O]×100

    Where:

    P = percentage change in property

    O = original value

    A = value after aging

    Conclusion:

    ASTM D7912 test procedure is useful for a variety of finished leathers. Finish stability is also important to find the application and function of leather.

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