Thermo-oxidation Engine Oil Simulation Test
The TEOST 33C test simulates the effect of engine operating conditions on the oxidation and deposit-forming tendencies of engine oils, especially in the high-temperature Turbocharger area. The TEOST MHT™ test simulates similar effects and conditions found in the ring belt and piston ring areas of the engine.
Oil samples treated with catalysts are pumped over a heated 33C Depositor Rod or a coiled MHT Depositor Rod on which deposits form. The weight of the Depositor Rod after the test is subtracted from its pre-test weight and added to the particulate weight collected by filtering the oil remaining. The results are reported in milligrams.
ASTM D6335 | Dual/33C Model (Chinese SH/T0750)
ASTM D7097 | MHT Model (Moderately High Temperature)
- Adjustable temperature zones and pump speeds.
- Clear Glass Mantle for easy viewing of depositor area during a test.
- Ability to collect the volatilized material for further analysis and investigation.
500012: TEOST™ 33C Depositor Rods (10 rods/box)
500993: TEOST MHT™ Depositor Rods (10 rods/box)
500990: 33C/Dual Mass Flow Controller
500995: MHT™ Mass Flow Controller
500075: Thermocouple Depth Gauge
500070: Two-Channel Chart Recorder – R
500065: Chart Recorder Paper – R
500024: Chart Recorder Pen – Black
500067: Chart Recorder Pen – Red
Spare Parts & Consumables (for either Test):
500030: TEOST Filter Cartridges w/Caps
500612: T/C Main (J-type)
500614: T/C Over-Temp. (K-type)
500409: Depositor Rod O-Rings (20/pack)
500892: Filtering Flask Funnel
500856: Filter Tube Assembly
500016: Steel Wool
500019: Pipe Cleaners (100/box)
500084: Disposable Pipette
500428: #8 Rubber Stopper
300995: Combination Wrench 7/16
500872: Thermocouple Collar Assembly
020044: TPC Calibration Oil (0.47 L | pint)
200103: Syringe (100 microliters)
500076: Weighing Boats
300815: Tool Box
500822: Spare Fuse Set (for either 110V or 220V)
500085: Plastic Depositor Rod Holder
500715: Protective Shield
Allen Keys for the cabinet (P/Ns 500610, 500611, 500613)
Contact Lazar Scientific for additional spare parts, reference oils, and accessories to run the MHT™ and 33C tests.