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  Home > Resources > Plastic Properties Descriptions > Gardner Impact
 ASTM D3029 Explained

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Gardner Impact - ASTM D3029

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Energy required for 50% of the specimens tested to fail after being impacted by falling weight or dart (tup).

Two testing methods are used.
Method F: Free-falling dart (tup).
Method G: Guided weight falls on impactor head resting on specimen.

Method Geometry Striker Diameter (mm) Support Plate Inner Diameter (mm)
F
FA 15.86 76.2
FB 12.7 38.1
FC 38.1 127
G
GA 15.86 76.2
GB 15.86 31.75
GC 15.86 16.26
 

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