The Copper Strip Tarnish Test assesses the relative degree of corrosivity of petroleum products, including lubricating oils. A polished copper strip is immersed in 30mL of sample at elevated temperature. After the test period, the strip is examined for evidence of corrosion and a classification number from 1-4 is assigned based on a comparison with the ASTM Copper Strip Corrosion Standards..
Copper Strip Tarnish Test Apparatus
- Conforms to ASTM D130, D6074, D6158 and related specifications
The complete apparatus for the Copper Strip Tarnish Test for lubricating oils consists of:
- Test Tube Bath
- Copper Strips
- Test Tubes
Test Tube Bath
- Accommodates 17 test tubes
- Temperature range to 190°C (374°F)
- Microprocessor temperature control with digital display and over temperature protection.
Constant temperature bath immerses 16 test tubes for copper strip tarnish tests of products not requiring a test bomb. Microprocessor temperature control has °C/°F switchable digital setpoint and display. Operator and equipment are protected by an over temperature control circuit which automatically interrupts power to the unit should bath temperature exceed a programmed cut-off point. Welded stainless steel double-wall construction with built-in support rack. Fully insulated.
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