Oxidation Stability

ASTM D943 - DIN 51587 - ISO 4263 - Test Method for Oxidation Characteristics of Inhibited Mineral Oils This test method is used to evaluate the oxidation stability of inhibited steam-turbine oils in the presence of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used for testing other oils, such as hydraulic oils and circulating oils, which have a specific gravity less than that of water and contain rust and oxidation inhibitors. ASTM D2274 - EN ISO 12205 - IP 388 - Oxidation Stability of Distillate Fuel Oil (Accelerated Method) This test method covers the measurement of the inherent stability of middle distillate petroleum fuels under specified oxidizing conditions at 95°C.
ASTM D4310—Determination of the Sludging and Corrosion Tendencies of Inhibited Mineral Oils: This test method evaluates the tendency of inhibited mineral oil-based steam turbine lubricants and mineral oil-based anti-wear hydraulic oils to corrode copper catalyst metal and form sludge during oxidation in the presence of oxygen, water, and copper and iron metals at an elevated temperature. The test method is also used for testing circulating oils that have a specific gravity less than that of water and contain rust and oxidation inhibitors.

LT/OX-192000/D-M: Oxidation Stability Dry Bath, 8 Places. EN ISO 12205 / ASTM D2274 / ASTM D943:
• Compact steel structure with powder coating and wheels for quick positioning.
• Internal tube-positioning system with stainless steel centering guide, optimal heat distribution over the entire cell length from ambient up to +150°C, stability ± 0.1°C, heating uniformity is granted by a high-temperature circulating fan.
• Oxygen supply system consist of 8 flowmeters equipped with needle regulation valve for fine regulating.
• Cooling water supply system consists of inlet and outlet piping with eight individual valves for easy maintenance and cleaning.
• Temperature controlled by a digital thermoregulator with PID functions that control the temperature trough an A class PT100 sensor in the range from ambient to +150°C, resolution 0,1°C and stability ± 0.5°C (with cover).
• Light protection cover made in steel with polymeric handle.
• Manually settable overtemperature cut-off alarm.

LT/OX-192000/L-M: Oxidation Stability Liquid Bath, 8 Places. EN ISO 12205 / ASTM D2274 / ASTM D943:
• Compact steel structure with powder coating and wheels for quick positioning.
• The heavy-designed stainless-steel bath has a capacity of approximately 45 liters and is equipped with a lateral drain valve for easy emptying.
• Double total immersion heating elements allow perfect bath stability and temperature range from ambient up to +150°C, stability ± 0.1°C.
• An internal motorized stirring system and protection/diffusion grid grant uniformity.
• Upper part made in stainless steel for easy cleaning and draining.
• Oxygen supply system consists of 8 flowmeters equipped with needle regulation valves for fine regulating.
• The cooling water supply system consists of inlet and outlet piping with eight individual valves, which are easily maintained and cleaned.
• Temperature controlled by a digital thermoregulator with PID functions that control the temperature trough an A class PT100 sensor in the range from ambient to +150°C, resolution 0,1°C and stability ± 0.1°C (with cover).
• Light protection cover made in steel with polymeric handle.
• Manually settable overtemperature cut-off alarm.
• Low-level liquid alarm and warning light.


Oxidation Stability of Gasoline and Aviation Fuels

ASTM D525 - IP 40 - DIN 51780 - ISO 7536 - Oxidation Stability of Gasoline (Induction Period Method). This test method covers the determination of the stability of gasoline in finished form only under accelerated oxidation conditions.
ASTM D873 - IP 138 - DIN 51799 - Oxidation Stability of Aviation Fuels (Potential Residue Method). This test method determines the tendency of aviation reciprocating, turbine, and jet engine fuels to form gum and deposits under accelerated aging conditions.

LT/OS-201000-2/M: Oxidation Stability Bath (2 places) - ASTM D525:
• Completely made in stainless steel
• About 30 litres capacity
• Heated by an electric stainless steel heater controlled by a thermoregulator
• Cover serves as a condenser with connections for water circulation
• Temperature range: ambient to 100°

LT/OS-201000-4/M: Oxidation Stability Bath (4 places):
• Completely made in stainless steel
• About 40 litres capacity
• Heated by an electric stainless steel heater controlled by a thermoregulator
• Cover serves as a condenser with connections for water circulation
• Temperature range: ambient to 100°


Oxidation Stability of Greases Oxygen Pressure Vessel Method

This test method determines the resistance of lubricating greases to oxidation when stored statically in an oxygen atmosphere in a sealed system at an elevated temperature under test conditions.

LT/OS-202000/M: Oxidation Cylinder ASTM D942:
• Polished stainless steel 18/8
• Capacity 185 ml
• Oxygen inlet stem connected to a cover through a suspension flange of the bath
• O-ring gasket
• Screw-top closure
• Tested to 180 psi
• ¼" joint for pressure gauge connection

LT/OS-202000-B/M: Oxidation Stability Bath for ASTM D942 - IP 142:
• Structures in stainless steel inox with double wall insulation
• Cover with two holes for the passage of the bombs
• Heater in stainless steel
• Digital thermoregulator with over-temperature alarm and probe PT100
• Safety thermostat with warning lamp
• Working temperatures: ambient … 150°C
• Power supply 220 Vac ± 10% 50/60 Hz


Oxidation Stability of Mineral Insulating Oil

This test method determines the resistance of mineral transformer oils to oxidation under prescribed accelerated aging conditions. Oxidation stability is measured by the propensity of oils to form sludge and acid products during oxidation. This test method applies to uninhibited and inhibited new oils but is not well-defined for used or reclaimed oils.

LT/OXS-198000/M: Oxidation Stability Bath for ASTM D2440:
• Oil bath for the immersion of 6 standard test tubes held by a double-bottom
• Stainless steel structure
• Insulated double wall
• Six independent flowmeters that transfer oxygen at a one l/h rate
• Oil thermostatics is controlled by a digital thermoregulator PID with over-temperature alarm and probe PT100A
• Heavy-duty motor stirrer
• Outlet system
• Complete glassware

LT/OXS-198000-D/M: Oxidation Stability Apparatus "Dry Bath" for ASTM D2440, 6/8 test positions available:
• Stainless steel structure and aluminium block with holes for the accommodation of the glass tubes
• Digital thermoregulator PID with over-temperature alarm and probe PT100A
• Collector with 6/8 flowmeters 1 L/h O2 fitted with pin valves
• Glassware is included (one set of Oil Receptacle and Head for each test position)


Oxidation Stability: RBOT and TFOUT Bath

ASTM D2112 - Oxidation Stability of Inhibited Mineral Insulating Oil by Pressure Vessel: This test method is intended to evaluate the oxidation stability of new mineral-insulating oils containing a synthetic oxidation inhibitor. This test is valuable in checking the oxidation stability of new mineral insulating oils containing 2,6-ditertiary-butyl para-cresol or 2,6-ditertiary-butyl phenol, or both, to control the continuity of this property from shipment to shipment. The applicability of this procedure for use with inhibited insulating oils of more than 12 cSt at 40°C (approximately 65 SUS at 100°F) has not been established.
ASTM D2272 - Oxidation Stability of Steam Turbine Oils by Rotating Pressure Vessel (RBOT): This test method utilizes an oxygen-pressured vessel to evaluate the oxidation stability of new and in-service turbine oils having the same composition (base stock and additives) in the presence of water and a copper catalyst coil at 150°C.
ASTM D4742 - Oxidation Stability of Gasoline Automotive Engine Oils by Thin-film Oxygen Uptake (TFOUT): This test method evaluates the oxidation stability of engine oils for gasoline automotive engines. This test, run at 160°C, utilizes a high-pressure reactor pressurized with oxygen, a metal catalyst package, a fuel catalyst, and water in a partial simulation of the conditions to which an oil may be subjected in a gasoline combustion engine. This test method can be used for engine oils with viscosity ranging from 4 mm2/s (cSt) to 21 mm2/s (cSt) at 100°C, including re-refined oils.
IP 229—Relative Oxidation Stability by Rotating Bomb of Mineral Turbine Oil (RBOT): This method provides a rapid means for estimating the oxidation stability of new turbine oils with the same composition.

LT/OS-197000/M: RBOT and TFOUT Bath ASTM D2112 - D2272 - D4742:
• Bath made in stainless steel for two vessels with a capacity of about 40 liters where the oxidation cylinders are turned at 100 rpm with a 30° angle according to ASTM specifications
• Bath temperature rate from ambient to 199°C ± 0.1°
• Controlled by a digital thermoregulator PID with an over-temperature alarm and PT100A
• Each rotating place is independent with motor switching
• Drain tap




Contact

  • 21 Vasco Boulevard
  • Goodwood
  • 7460
  • South Africa
  • Email:
    This email address is being protected from spambots. You need JavaScript enabled to view it.

  • Branch Contact Details:
    Click Here

Follow us

We accept SnapScan payments
from COD clients