Koehler – Corrosion Tester – Copper Strip Corrosion Tester

  • MALAYSIA

    Jasmine Keller, Assistant General Manager, Scientific Instrumentation

    DKSH Technology Sdn. Bhd.
    B-11-01, The Ascent, Paradigm, No. 1, Jalan SS7/26A, Kelana Jaya
    47301 Petaling Jaya, Selangor
    Malaysia

    +60 3-7882 6285

    Email

  • SINGAPORE

    Monica Wan, General Manager

    DKSH Singapore Pte Ltd
    625 Lorong 4 Toa Payoh, #03-00
    319519 Singapore
    Singapore

    +65 6962 3121

    +65 6273 1503

    Email

The Copper Strip Tarnish Test assesses the relative degree of corrosivity of petroleum products, including aviation fuels, automotive gasoline, natural gasoline, solvents, kerosene, diesel fuel, distillate fuel oil, lubricating oil and other products. 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. For aviation fuels and natural gasoline the sample tube is placed inside a stainless steel pressure vessel during testing.

Available Models

Technical Specifications 

Conforms to the specifications ofASTM D4048, FTM 791-5309
Test Tube Bath Capacity16 test jars
Maximum Temperature190°C (374°F)
Temperature Control Stability±1°C (±2°F)
Bath Medium5 gal (18.9L) water or high temperature heat transfer fluid

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.

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.

Technical Specifications 

Conforms to the specifications ofASTM D130; IP 154 FSPT DT-28-65; ISO 2160; DIN 51759; FTM 791-5325; NF M 07-015
Testing CapacityK25310/K25319: four (4) copper strip corrosion test pressure vessels K25320/K25329: eight (8) copper strip corrosion test pressure vessels or sixteen (16) test tubes with optional test rack
Maximum Temperature221°F (105°C)
Temperature Control Stability±1°F (± 0.5°C)
Heater Range0-750W
Bath Medium5 gal (18.9L) water
Temperature ControlAnalog, Digital

Thermostatically controlled water bath immerses Copper Strip Corrosion Test pressure vessels at the required depth per ASTM specifications. Use for testing aviation gasoline, aviation turbine fuel and natural gasoline. Fully insulated, double-wall stainless steel construction. Soxhlet reflux condenser and constant water level device maintain proper working depth. Choice of four-pressure vessel and eight-pressure vessel models. Optional removable test tube rack converts four-pressure vessel model for testing of products not requiring corrosion pressure vessel. Copper Strip Corrosion Test Pressure Vessel For aviation fuels and natural gasoline Precision machined stainless steel pressure vessel inserts in copper corrosion bath for testing aviation fuels and natural gasoline. Withstands test pressure of 100psi (689kPa) per specifications. Threaded cap with O-ring gasket and knurled circumference tightens by hand to a positive seal. A 1⁄8″ groove in the pressure vessel threads permits safe, gradual release of pressure when opening the pressure vessel.

Technical Specifications 

Conforms to the specifications ofASTM D130, D6074, D6158; FSPT DT-28-65; IP 154; ISO 2160; DIN 51759; FTM 791-5325; NF M 07-015
Capacity17 test tubes
Maximum Temperature190°C (374°F)
Temperature Control Stability±1°C (±2°F)
Heater Range0-750W
Bath Medium5 gal (18.9L) water or high temperature heater transfer fluid

Constant temperature bath immerses 17 test tubes for copper strip tarnish tests of products not requiring a test pressure vessel, including: diesel fuel, fuel oil, automotive gasoline, Stoddard solvent, kerosene and lubricating oil. 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.

Key Industries

  • Chemical
  • Education & Academics
  • Environmental
  • Oil & Gas

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