• Copper Strip Corrosion from Lubricating Grease

Copper Strip Corrosion from Lubricating Grease



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.

  • Conforms to ASTM D4048 specifications

Constant temperature bath immerses 16 test jars for lubricating greasesl. 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 inner wall and powder coated steel outer wall construction with built-in support rack. Fully insulated.

Conforms to the specifications of: 

ASTM D4048, FTM 791-5309

Test Tube Bath Capacity: 16 test jars

Maximum Temperature: 190°C (374°F)

Temperature Control Stability: ±1°C (±2°F)

Bath Medium: 5 gal (18.9L) water or high temperature heat transfer fluid

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

lxwxh,in.(cm): 15 1⁄2x12 1⁄2x14 (39x32x36)
Net Weight: 27 lbs (12.2kg)

Shipping Weight: 44 lbs (20.0 kg)

Dimensions: 28x24x20 in. (71.1x61.0x50.8 cm)

  • K25308 Test Jar Rack. Inserts in K25330/K25339 baths to hold sixteen
  • 332-004-001 Test Jars
  • 332-004-001 Test Jar 
  • K25080 Copper Test Strip. Conforming to ASTM specifications
  • 380-150-001 Silicone Carbide Paper, 150 grit. For polishing of test strips. Pack of 50 sheets
  • 380-240-001 Silicone Carbide Paper 240 Grit. For final polishing of test strips. Pack of 50 sheets
  • 380-150-000 Silicone Carbide Grain, 150 Grit. For final polishing of test strips. 1 lb package
  • K25000 Polishing Vise. Holds copper strip firmly in place without marring the edges. Stainless steel, mounted on a composition base
  • K25100 ASTM Copper Corrosion Standards Colored reproductions of tarnished strips encased in plastic
  • 332-004-002 Viewing Test Tube. Protects copper strip during inspection or storage
  • 250-000-130F ASTM 130F Thermometer, Range: 20 to 220°F 
  • 250-000-130C ASTM 130C Thermometer, Range: –7 to +105°C
  • K460-0-8 Vented Cork