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PRECISION PETROLEUM TESTING INSTRUMENTS

Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, and Other Highly Refined Oils – ASTM D4636, D5968, D6594 | FTM 791-5307, 791-5308

 

Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, Diesel Engine Oils, and other Highly Refined Oils

Corrosiveness and Oxidation Stability of Hydraulic Oils, Aircraft Turbine Engine Lubricants, Diesel Engine Oils, and other Highly Refined Oils

Lawler offers a wide range of heated baths for the oxidation of oil products by ASTM D4636, D5968, D6594, and FTM 791-5307/5308 methods. Each test position has a float in tube flowmeter with a precision control valve for the delivering up to 10 ±1 L/hr air to the test sample. Test methods specify flowmeter apparatus as 10 L/Hr but actual flowrates are 5 L/Hr in D4636 Alternate Proc. 2, D5968, and D6594. FTM 791-5308 states 3 L/Hr for spindle oils, 5 L/Hr all other oils. Upon request we can substitute the 10 L/Hr flowmeters with approx. 6 or 8.5 L/Hr flowmeters for increased precision at operating flowrates. A high limit controller(s) is also provided for each unit interrupting power to the heaters in the event of primary controller failure and over heating.

Model HT-10-7 has 7 heated tube positions conforming to ASTM D4636 and related test methods. Each heated tube is of proper dimension to snugly fit the test tube. Each test position is individually temperature controlled with an indicating digital PID controller. Temperature stability of each position is ±0.5°C. Temperature range is from +50° to +220°C. Each tube’s temperature may be independently adjusted so as to assure each sample temperature in each test position is identical. It is energy saving since only the desired positions need to be operated. Model HT-10-7 has further flexibility allowing each test position to be at widely different temperatures. Each position is protected against overheating in the event of primary controller failure.

Model 419-4 is a 4 position dry aluminum block bath conforming to ASTM D4636 and related test methods. Upon request, Lawler can supply two independent blocks holding two samples each as shown in the photograph. The bench top cabinet holds both blocks separated by insulation. Each block has an independent digital display PID temperature controller. Each block may be operated at a different temperature from the other or remain unused to save energy. Inquire if this option is desired. Temperature stability and position to position uniformity within each block is ±0.5ºC (or better).

Model 419-6 is identical to 419-4, except it is a 6 position model.

We can accommodate requests for alternate numbers of positions. Please inquire.

Model 26 removes moisture from pressurized house air and is equipped with an electronic sensor measuring the dew point. The standard procedure of ASTM D4636 test method specifies that dry air with a dew point of -68°C be used for testing.

Model 33 humidifies air to 10 ±1 mg/L of air and is equipped with an electronic sensor measuring water content. Alternative Procedures 1 and 2 of ASTM D4636 test method may specify that humidified air be used for testing.

  • Individual Heated Tube Bath Conforming to ASTM D4636, D5968, D6594
  • Aluminum Block Bath Conforming to ASTM D4636, D5968, D6594
  • Temperature Range 50° to 220°C
  • Temperature Stability of ±0.5°C
Model NumberDescription
HT-10-7Individually Heated Tube Bath, 7 positions, 5 -10 L/hr flowmeters
419-4Heated Aluminum Block Bath, 4 positions, 5 -10 L/hr flowmeters
419-6Heated Aluminum Block Bath, 6 positions, 5 -10 L/hr flowmeters

Accessories for Each Test Position – ASTM D943 | ASTM D4310

Part NumberDescription
CO-1Sample test tube, ea
CO-2Sample tube head, ea (ASTM D4636, D5968, D6594, FTM791/5307)
CO-3Air delivery tube, ea to fit CO-2 (ASTM D4636, D5968, D6594, FTM791/5307)
CO-3AAir delivery tube, ea to fit CO-4A (ASTM D4636 Alt. Proc 2, FTM791/5308)
CO-4Allinh condenser, ea to fit CO-2 (ASTM D4636, D5968, D6594, FTM791/5307)
CO-4AAllinh condenser, ea to fit CO-1 (ASTM D4636 Alt. Proc 2, FTM791/5308)
CO-5Tube for thermocouple (ASTM D5968, D6594, FTM791/5307 only), ea
CO-6-TCSheathed thermocouple (ASTM D5968 & D6594 only), ea. 5 ft cable. Type T below 300 deg C, Type J above 300 deg C (specify with “-T” or “-J” suffix)
CO-6-BWBare wire thermocouple (D5968, D6594, FTM791/5307 only) specify “-T” or “-J” as above
CO-6-RTDSheathed RTD (ASTM D4636, D6594 only)
CO-7AMetal Test Specimens pack (Cu, Pb, Sn, PBz) (D5968, D6594 only)
CO-10Testing assembly (one each of CO-1, CO-2, CO-3, CO-4, CO-5, CO-6)
CO-13Metal Test Specimen, Titanium 8% Mn, ea. (ASTM D4636, FTM791/5307)
CO-14Metal Test Specimen, Magnesium AZ31B, ea. (ASTM D4636, FTM791/5307,5308)
CO-15Metal Test Specimen, Steel M50, ea. (ASTM D4636, FTM791/5307)
CO-16Metal Test Specimen, Steel Grade 1010, ea. (ASTM D4636, FTM791/5307,5308)
CO-17Metal Test Specimen, Silicon-iron-bronze, ea. (ASTM D4636, FTM791/5307)
CO-18Metal Test Specimen, Silver 99.95, ea. (ASTM D4636, FTM791/5307)
CO-19Metal Test Specimen, Aluminum Alloy 2024, ea(ASTM D4636, FTM791/5307,5308)
CO-20Metal Test Specimen, Copper Cu, ea. (ASTM D4636, FTM791/5308)
CO-21Metal Test Specimen, Cadmium, ea. (ASTM D4636, FTM791/5308)
CO-22Glass spacer to separate the washer style metal specimens, ea
CO-23Teflon adaptor for sealing air tube to sample tube head, ea (D4636, D5968, D6594, FTM791/5307)

Note: Specify if D4636 metal specimens desired as washer or square shaped. Add appropriate suffix to part number “-W” for washer and “-S” for square.

Suggested Additional Accessories

Part NumberDescription
CO-9Centrifuge tube, cone shaped, 100 mL (ASTM D4636, FTM791/5307 only), each
CO-11Oxidation test tube support rack for 12 tubes
CO-12Mass flow controller with Windows interface software, each
FM-14Air drying tower with Dririte desiccant and stand. (Recommended when using house air)
FM-15Air supply pump & surge tower assembly. (Recommended when using your own desiccant)
FM-14/15Air supply pump and surge tower (FM-15) with air drying tower (FM-14) assembly
FM-16Water chiller for condensers
SCP-24CAMI grade 240 grit silicon carbide paper (closest to European FEPA P280) (D4636 only)
SCP-40CAMI grade 400 grit silicon carbide paper (closest to European FEPA P800) (D4636, D5968, D6594)
ALP-24CAMI grade 240 grit aluminum oxide paper (closest to European FEPA P280) (D5968 and D6594)
26Dehumidifier for testing air
33Humidifier for testing air per ASTM D4636 Appendix
DAQAutomatic digital data recorder
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