ASTM D7912-14 Resistance of Finish to Heat Aging

ASTM D7912-14 Resistance of Finish to Heat Aging

ASTM D7912-14 test method determines whether a leather finish is resistant to cracking, flaking, or turning sticky after ageing. The standard values are reported in the SI unit.

    Scope:

    ASTM D7912-14 test procedure is useful for a variety of finished leathers. Finish stability is also important in founding 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 test procedure.

    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

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