Test Method
Measures the tendency of lubricating grease to corrode copper under static conditions. A polished copper strip is immersed in a sample of grease at elevated temperature for a specified period. The strip is examined for corrosion and a classification number from 1-4 is assigned based on a comparison with the ASTM Copper Strip Corrosion Standards.

Features and Benefits
• Conforms to ASTM D4048 specifications

K25330 Copper Strip Tarnish Test Apparatus
Constant temperature bath immerses 16 test tubes for copper strip tarnish tests of products not requiring a test bomb. Microprocessor temperature controller has °C/°F switchable digital setpoint and display. Operator and equipment are protected by an overtemperature control circuit which automatically interrupts power to the unit should bath temperature exceed a programmed cut-off point. Communications software （RS232, etc.）, ramp-to-set and other enhanced features are available as extra cost options. Contact your Koehler representative for information. Welded stainless steel double-wall construction with built-in support rack. Fully insulated.

Specifications
Conforms to the specifications of: ASTM D4048, FTM 791-5309
Capacity: 16 test tubes
Maximum Temperature: 190°C （374°F）
Temperature Control Stability: ±1°C （±2°F）
Bath Medium: 5 gal （18.9L） water or high temperature heater transfer fluid

Electrical Requirements
115V 50/60Hz, Single Phase, 7.5A
220-240V 50/60Hz, Single Phase, 4A

Dimensions Ixh,in.（cm）
15.5x12.5x14 （39x32x36）
Net Weight: 27 Ibs （12.2kg）

Shipping Information
Shipping Weight: 45 Ibs （20.4kg）
Dimensions: 7.8 Cu. ft.