• D892 and D6082 Dual Twin Foaming Characteristics Test Apparatus

D892 and D6082 Dual Twin Foaming Characteristics Test Apparatus



Foaming of lubricating oils in applications involving turbulence, high speed gearing or high volume pumping can cause inadequate lubrication, cavitation, overflow and premature oxidation. The sample is blown with a controlled volume of air at different specified temperatures. The resultant foam is measured at the end of each aeration period and at different intervals afterward. The amount of time required for the foam to collapse to “0” after the aeration period is also measured.

For four tests in accordance with control ASTM D6082 and ASTM D892 specifications. Dual liquid baths feature digital temperature control for Sequences I through IV. Four flowmeters maintain the required flow rate of 94 and 200mL/min to the air diffusers. Requires the use of an external chiller to perform the Sequence I and III tests at 24°C.

  • Test Cylinders, 1000mL (4)
  • Diffuser Stones, calibrated and certified (4)
  • Air Delivery Tube Assemblies (4)
  • Air Outlet Tubes (4)
  • Rubber Stoppers (4)
  • Bath Jars (2)
  • Support Rack (1)
  • Acrylic Safety Shield, 18"

Conforms to the specifications of: 

ASTM D892, D6082; IP 146; DIN 51566; FTM 791-3211; NF T 60-129

Temperature Control:

Digital Setpoint and Displays °C/°F switchable
Built-in Overtemperature Cut-off Protection

Bath Temperature: 
Left (Cold) Bath: External Chiller required to perform Sequence I and III at 24°C
Right (Hot) Bath: Ambient to 150°C (302°F)
Air Flow Rate: 94mL/min and 200mL/min

Bath Capacity: 9 gal (38.5L) each

lxwxh,in.(cm): 32 1⁄4x15x31 1⁄4 (82x38x79.4)
Net Weight: 108 lbs (49kg)

Shipping Weight: 309 lbs (140.2 kg)

Dimensions: 45x28x56 in. (114.3x71.1x142.2 cm)

  • K43025 Diffuser Stone Test Apparatus 
  • K43026 Wet Test Gas Meter 
  • 332-005-005 Drying Tower 
  • 387-115-001 Air Pump 
  • 250-000-12F ASTM 12F Thermometer  (or 250-000-12C ASTM 12C Thermometer)
  • 250-000-41C ASTM 41C Thermometer 
  • K33031 Refrigerated Recirculator - Use with foam test baths for 24°C tests (Sequence I and III). Microprocessor based digital control and quiet running compressor provide reliable operation and accurate control within ±0.5°C. For complete specifications, please contact Koehler Customer Service. 115V 60Hz, 8A
  • K33032 Refrigerated Recirculator, 220-240V 50Hz, 4A
  • 250-000-12C ASTM 12C Thermometer. Range: –20 to +102°C
  • 344-100-01C Certified Diffuser Stone. Calibrated and certified for compliance with ASTM specifications for pore diameter and permeability
  • 344-100-001 Diffuser Stone, non-calibrated
  • 344-005-001 Stainless Steel ‘Mott’ Diffuser
  • 344-005-01C Stainless Steel ‘Mott’ Diffuser Certified