testing mechanical tests tensile properties tensile test procedure (astm 638)

TestingMechanical tests

• Tensile properties

• Tensile test procedure (ASTM 638)

• Flexural properties of plastics (ASTM D790)

• Compressive properties of rigid plastic (ASTM D695)

• Izod Impact (ASTM D256)

• Shear Strength (ASTM D732)

• Rockwell hardness

(ASTM D785)

• Indentation hardness (Durometer)

(ASTM D2240)

• Stress concentrations • Deflection temperature (ASTM D648)

• Outdoor weathering (ASTM D1435)

Weathering and aging

• Accelerate weathering (ASTM G23)

• Permanent effect of heat (ASTM D794)

• Water absorption (ASTM D570)

• Tests for electrical resistance (ASTM D257)

Thermal conductivity

Electrical properties

• Dielectric constant and dissipation factor (ASTM D150)

• Arc resistance (ASTM D495)

• Dielectric strength (ASTM D149)

• Conditioning procedure (ASTM D618)

Specimen conditioning

Viscosity

• Underwriter’s laboratories (UL 94)

Flammability tests

• Oxygen index (ASTM D2843)

• Steiner 25-ft Tunnel test (ASTM E84) (UL723)

• Corner wall test (Factory mutual)

Thickness measurement

Chemical analysis

• Infrared (IR)• Chromatography – Gas, Liquid, Paper, Column, Thin Layer• Thermogravimetric Analysis (TGA)• Mass spectrometer• Nuclear Magnetic Resonance (NMR)• Atomic absorption• Other analysis techinquess