Physical Testing Methods
Physical Testing Benefits:
For thermoplastic and thermoset polymer materials, physical testing provides information to also identify and confirm polymer type using reference physical parameters: density or specific gravity and impact behavior.
The impact testing was especially beneficial for use in the material selection of material grades for best performance in unique applications, and as a qualification tool for the proper processing of components.
Impact Testing (IMP):
Density or Specific Gravity (DEN):
The density of components or sample specimens is measured using a balance apparatus based on ASTM D 792. The density testing was performed using a Mettler Toledo XS105 scale and the manufacturer provided density apparatus.
The hardness was measured using the Instron Wilson Rockwell 2000B. The hardness measurements were taken on the prepared cross-section using the listed Rockwell Scales using the method, ASTM E18. The hardness measurements if necessary may be converted to another hardness scale such as Brinell (HBS) hardness scale using the specification, ASTM E140.
HRB is a scale using a total test force 100 kgf and a 1/16” ball indenter.
HRE is a scale using a total test force 100 kgf and a 1/8” ball indenter.
HRF is a scale using a total test force 60 kgf and a 1/16” ball indenter.
HR30T is a scale using a total test force 30 kgf and a 1/16” ball indenter.
HR15T is a superficial scale using a total test force 15 kgf and a 1/16” ball indenter.
Durometer Hardness (Rubber Property):
The hardness was measured using the Type A Durometer or Type D Durometer. The hardness measurements were taken on the available plane surfaces of the submitted material samples. The hardness testing was based on two test methods, ASTM D2240 and ISO 868. The measurement values are provided for the maximum gauge reading and the reading after the interval of fifteen seconds.
PTC® Shore A Scale Classic Durometer 306L
PTC® Shore D Scale Classic Durometer 307L