• Oxidation Stability Apparatus, 30-Place and 60-Place

Oxidation Stability Apparatus, 30-Place and 60-Place


Evaluates oxidation stability by subjecting the sample to a temperature of 95°C 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.

  • Thirty and sixty-place liquid baths for high volume testing requirements
  • Conforms to ASTM and related test method specifications
  • Special baths for ASTM D2893 and AOCS CD12-57 tests

Constant temperature water baths for high volume oxidation stability applications. Provides temperature control, metered air flow and condenser water supply controls for as many as thirty or sixty cells in a single system, eliminating the need for multiple water and electrical feeds and oxygen supply tanks. Microprocessor PID control provides quick temperature stabilization without overshoot, and the bath is protected by a redundant over-temperature control circuit that interrupts power should the bath temperature exceed a programmed cut-off point. Display provides actual setpoint temperature values in °C/°F format. Communications software (RS232, etc.), ramp-to-set and other enhanced features are available as extra cost options. A 6 or 12kW heat exchanger with heavy duty magnetic drive circulation pump provides rapid and uniform heat transfer throughout the bath. Bath liquid depth is automatically maintained within ASTM specified tolerances by an electronic water level control system. Two banks of individually controlled flowmeters maintain the required oxygen flow rate to each test cell, and condenser water control valves for each cell are mounted on manifolds along the sides of the bath. A centrally mounted trough collects condenser waste water for convenient disposal or recirculation through an external cooling device. The bath interior is constructed of heavy gauge welded stainless steel. All components are easily accessible for servicing if required. Supplied with a sturdy finished angle-iron frame for floor standing installation. Order oxidation cell glassware and accessories separately.
Conforms to the specifications of: ASTM D943, D2274, D2893*, D4310, D6158; ISO 4263, 12205 AOCS CD12-57*; DIN 51586, DIN 51587; NF M 07-047; NF T 60-150
Temperature Control Stability: ±0.1°C (±0.2°F)
Oxygen Flow Rate: 3L/h to each test cell, individually controlled
Bath Capacity:
30-place model: 60 gal (227L)
60-place model: 114 gal (432L)

30-place model: 220-240V 50/60Hz, Single Phase, 28A
60-place model: 220-240V 50/60Hz, Single Phase, 54A

lxwxh,in.(cm)

30-place model: 43x55x52 (109x140x132)
60-place model: 43x78x52 (109x198x132)


Net Weight: 851 lbs (386.0 kg)

Shipping Weight: 1465 lbs (664.5 kg)

Dimensions: 99x53x73in (251.5x134.6x185.4 cm)

  • K12281 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, PTFE stopper and O-rings
  • K122-0-18 Oxygen Delivery Tube
  • K122-0-19 Oxidation Test Tube
  • K122-0-20 Condenser
  • K122-0-21 Thermometer Bracket
  • K122-0-22 Oil Level Indicator Strip
  • K122-0-23 Syringe Sampling Tube Holder
  • K122-0-27 PTFE Stopper
  • K122-0-28 Syringe Sampling Spacer
  • K122-0-30 Syringe Sampling Tube
  • AS568-009-V14 O-rings
  • K12210 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.
  • K24000 Wire Coiling Mandrel - Mounts on bench for winding steel and copper wire into catalyst coils meeting ASTM specifications.
  • K12250 Steel Wire - Low metalloid steel wire, 0.0625" (1.59mm) diameter, for catalyst coils. Supplied in 1000 ft (304.8m) lengths.
  • K12260 Copper Wire - Electrolytic copper wire, 0.064" (1.63mm) diameter, for catalyst coils. Supplied in 1000 ft (304.8m) lengths.
  • 380-100-001 Silicone Carbide Paper - Used to polish steel and copper wire prior to winding into catalyst coils. 100 grit.
  • 250-002-001 Oxidation Cell Thermometer - Range: 80 to 100°C. For ASTM D943 and D4310.
  • 250-000-40C ASTM 40C Thermometer - Range: 72 to 126°C. For constant temperature baths.