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