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 aging. The standard values are reported in the SI unit.

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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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ASTM D7912 Resistance of Finish to Heat Aging

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