Ash content
This test helps in determining the amount of fillers in a specimen after the polymer has been burned off and suitable for the determination of the ash content of rubber compounding materials. The test methods may be used for quality control, product acceptance, or research and development.
Test Method: ASTM D2584, D5630, ISO 3451
Bulk density
This test helps in determining the weight per unit volume of material. The bulk density (morphology) of the rubber contributes significantly to the binder’s performance and is used as a property in the specification of the rubber. This test method provides a measure of the crumb rubber’s bulk density.
Test Method: ASTM D1895B
Compression set under constant deflection
This test helps in determining the ability of elastomeric material to maintain elastic properties after prolonged compressive stress. The set test is used to determine the quality of rubber compounds and their applicability to certain types of usage.
Test Method: ASTM D395 B
Compression Properties
This test helps in determining the behavior of a material when it is subjected to a compressive load. The compressive strength of a material is the force per unit area that it can withstand in compression. This test helps us to design the rubber compound based on its application and service conditions.
Test Method: ASTM D695, ISO 604
Charpy Impact
This test helps in determining the material resistance to impact from a swinging pendulum. This test provides comparative values for various plastics easily and quickly. In this test, as in a flexural test, a standard test bar, 80mm long and with a cross-section of 4mm × 10mm is placed on supports 62mm apart, resting on the narrower side.
Test Method: ISO 179
Carbon black in Olefin Plastic
This test helps in determining the carbon black content in olefin materials like polyethylene or polypropylene that do not contain nonvolatile additives or filters.
Test Method: ASTM D1603
Coefficient of Friction
This test helps in determining the kinetic and static resistance of one surface being dragged across another. This test determines the coefficient of friction of plastic films, but can also be used for paper samples. The apparatus conforms to international standards. Features: Lead screw driver mechanism, Vacuum suction bed for film or paper, Variable speed control, Temperature control option for hot slip, Digital display for force and Coefficient of Friction, Static and dynamic measurement, Adjustable cross arm stops.
Test Method: ASTM D1894
Deflection Temperature under Load (DTUL or HDT):
This test helps in determining the temperature at which a standard test bar deflects a specific distance under a load.
Test Method: ASTM D648, ISO 75
Density and Specific Gravity:
This test helps in determining the mass per unit volume of a material and the ratio of mass of a given volume of material at 23 degree C to the same volume of deionizer water.
Test Method: ASTM D792, ISO 1183
Durometer Hardness (Shore Hardness):
This test helps in determining the relative hardness of soft material, usually plastic or rubber. This test measures the penetration of a specified indentor into the material under specified conditions of force and time.
Test Method: ASTM D 2240
