K12201 Oxidation Stability Apparatus, 12-Unit, Solid Block


Test Method
Evaluates oxidation stability by subjecting the sample to a temperature of 95C in the presence of oxygen or dry air. For inhibited mineral oils, the sample is reacted with oxygen in the presence of water and an iron-copper catalyst.

Features and Benefits

• Conforming to ASTM and related test method specifications

• Accommodates twelve oxidation cells

• Microprocessor digital temperature control


K12201 Oxidation Stability Apparatus, 12-Unit, Solid Block
Constant temperature aluminum block oxidation bath with flowmeters and condenser water manifold for twelve cells. Insulated solid block design provides efficient operation at temperatures of up to 450F (232C). Microprocessor temperature control unit features digital setpoint and display and built-in overtemperature protection. Includes individual flowmeters and control valves for each cell, delivering air flow at the rate of 3L/h. Condenser water manifold has individual control valves for each cell. Order oxidation cell glassware and accessories separately.


Conforms to the specifications of: ASTM D943, D2274, D2893*, D4310, D6158; AOCS CD12-57*; DIN 51586, 51587; ISO 4263, 12205; NF M 07-047; NF T 60-150
* Modified versions of this equipment are available for ASTM D2893 "Oxidation Characteristics of Extreme Pressure Oils" and AOCS CD12-57 "Fat Stability-Active Oxygen Method." Information will be furnished upon request.

Testing Capacity: 12 oxidation cells

Maximum Temperature: 450F

Temperature Control Stability: 0.2F (1C)

Air Flow Rate: 3L/h

Electrical Requirements
220-240V 50/60Hz, Single Phase, 16A

Dimensions lxwxh,in.(cm)
30x10x43 (76x25x109)
Net Weight: 345 lbs (156.5kg)

Shipping Information
Shipping Weight: 440 lbs (199.6kg)
Dimensions: 12 Cu. ft.

Ordering Information



Product Description

Electrical Requirements


Oxidation Stability Apparatus, 12-Unit, Solid Block

220-240V 50/60Hz


Solid block baths meet temperature control and other requirements of ASTM and related methods. While the aluminum block design offers operating advantages over the standard oil bath, it should be noted that many applicable specifications for this test call for a liquid bath medium.




Product Description

ASTM D943, D4310, and D2274 Accessories
For ASTM D2274, order one each K122-0-18 Oxygen Delivery Tube, K122-0-19 Oxidation Test Tube, and K122-0-20 Condenser for each cell.


Oxidation Cell Assembly for ASTM D943 and D4310.
Includes oxidation cell, condenser, oxygen delivery tube, thermometer bracket, oil level indicator strip, syringe sampling tube, sampling tube holder, spacer,


Oxygen Delivery Tube


Oxidation Test Tube




Thermometer Bracket


Oil Level Indicator Strip


Syringe Sampling Tube Holder


PTFE Stopper


Syringe Sampling Spacer


Syringe Sampling Tube



Iron-Copper Catalyst. For ASTM D943 and D4310.


Catalyst Coil
Low-metalloid steel wire and electrolytic copper wire wound in a double spiral conforming to ASTM specifications. Packed in a sealed glass tube with a nitrogen atmosphere. Ready for use.


Wire Coiling Mandrel
Mounts on bench for winding steel and copper wire into catalyst coils meeting ASTM specifications.


Steel Wire
Low metalloid steel wire, 0.0625" (1.59mm) diameter, for catalyst coils. Supplied in 1000 ft (304.8m) lengths.


Copper Wire
Electrolytic copper wire, 0.064" (1.63mm) diameter, for catalyst coils. Supplied in 1000 ft (304.8m) lengths.


Silicone Carbide Paper
Used to polish steel and copper wire prior to winding into catalyst coils. 100 grit.



Oxidation Cell Thermometer. For ASTM D943 and D4310.
Range: 80 to 100C.


ASTM 40C Thermometer. For constant temperature baths.
Range: 72 to 126C.


When inquiring about NIST traceable certified thermometers, please refer to the catalog number for the corresponding thermometer and replace the middle three zeros in the catalog number with 004. Example: 251-000-01C ASTM 1C Thermometer would be 251-004-01C ASTM 1C Certified Thermometer.