Oxidation Stability Test Apparatus for Gasoline and Aviation Fuels

KI-64400 Precision Oxidation Stability Test Apparatus, 2-place

Precision machined stainless steel pressure vessel includes threaded body; lid; stem with filler rod and mounting flange; needle valve for purging, pressurizing and exhausting pressure vessel with oxygen; and burst disk assembly.

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Description

Precision machined stainless steel pressure vessel includes threaded body; lid; stem with filler rod and mounting flange; needle valve for purging, pressurizing and exhausting pressure vessel with oxygen; and burst disk assembly. Pressure vessel interior and inside of stem have a high polish to facilitate cleaning and prevent corrosion. Stainless steel burst disk ruptures at 223psi (1537kPa) to prevent unsafe pressure build-up inside pressure vessel. Octagonal sections on the pressure vessel and lid permit tight closure with wrench. Includes buna-N gaskets. Can also be used as a pressure vessel in ASTM D5304 “Standard Test Method for Assessing Distillate Fuel Storage Stability by Oxygen Overpressure”.

Test Method

Provides an indication of the tendency of gasoline and aviation fuels to form gum in storage. The sample is oxidized inside a stainless steel pressure vessel initially charged with oxygen at 100psi (689kPa) and heated in a boiling water bath. The amount of time required for a specified drop in pressure (gasoline) or the amount of gum and precipitate formed after a specific aging period (aviation fuels) is determined.

Water / Liquid Oxidation Bath

Two different models, both equipped with low liquid level controllers in accordance with the latest ASTM specifications. Two-unit water bath can be flush mounted in a table top if desired, and is equipped with an overflow standpipe/drain to maintain the proper depth when the pressure vessels are inserted, and a plated brass reflux condenser to minimize evaporation loss.

The six unit model can be used with water or oil as a bath medium, and has a fully digital touch screen controller that provides quick temperature stabilization without overshoot. The bath is also protected by a redundant overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Display provides actual setpoint temperature values in °C/°F format. Both models feature double-wall insulated construction with stainless steel tanks, support racks and port covers. Order thermometer separately.

Solid Block Oxidation Bath

Insulated aluminum block baths available in two or four-unit capacity. Baths feature microprocessor temperature control with built-in overtemperature protection and dual LED displays for setpoint and actual temperature values in °C/°F format. The solid block design offers operating advantages over the boiling water bath, and meets temperature control and other requirements of ASTM and related methods. It should be noted, however, that many applicable specifications for this test method call for a liquid bath medium. Housed in an insulated steel cabinet with chemical-resistant polyurethane enamel finish. Includes lids for pressure vessel ports. Order thermometer separately.

Specifications

Note: 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 boiling water bath, it should be noted that many applicable specifications for this test call for a liquid bath medium. Please refer to the test method for the specific requirements.

Conforms to the specifications of: ASTM D130, IP 154, FSPT DT-28-65, ISO 2160, DIN 51759, FTM 791-5325, NF M 07-015

Water / Liquid Oxidation Baths

Conforms to the Specifications of:

ASTM D525, D873; ISO 7536

Capacity:

  • K64400/K64402: 2 Test Vessels
  • K64404: 6 Test Vessels

Temperature:

  • Range: Ambient to 221°F (105°C)
  • Control Stability: ±0.09°F (±0.05°C)

Bath Medium:

  • K64400/K64402: 9.9 gal (37.5 L) water or white technical oil
  • K64404: 16.1 gal (60.9 L) water or white technical oil

Solid Block Oxidation Baths

Conforms to the Specifications of:

ASTM D525, D873; IP 40, IP 138; ISO 7536; DIN 51780, 51799; FTM 791-3352, 791-3354; NF M 07-012, 07-013

Capacity:

  • K10401/K10491: 2 Test Vessels
  • K10403/K10493: 4 Test Vessels

Temperature:

  • Range: Ambient to 250°F (121°C)

Electrical Requirements

  • K64400: 115V 60Hz, 19A
  • K64402/K64404: 220-240V 50/60Hz, 10A
  • K10401: 115V 60Hz, 12A
  • K10491: 220-240V 50/60Hz, 6A
  • K10403: 115V 60Hz, 22A
  • K10493: 220-240V 50/60Hz, 11A

Additional Accessories

  • K10500 Oxidation Pressure Vessel
  • K10540 Glass Sample Container and Cover with pour out spout
  • K10540/C Glass Sample Container Cover Only
  • K10510 Gasket – Replacement composition gasket for K10500 Oxidation Pressure Vessel
  • K10551 Pressure Line – For pressurizing Oxidation Pressure Vessel. 6 ft. (1.83m) long, with quick release coupling for needle valve on pressure vessel and threaded fitting for oxygen tank
  • K10556 Oxygen Manifold Pressure Relief System – Connects to oxygen source to prevent overcharging of vessel. Equipped with relief valve to vent at 125psi and 300 series stainless steel 150psi burst disk assembly. Constructed from 300 series stainless steel. Cleaned for oxygen service
  • K10520 Wrench – For tightening seal on Oxidation Pressure Vessel
  • K10530 Table Socket – Installs in benchtop to aid in tightening seal on Oxidation Pressure Vessel
  • K10560 Bronze Tubing – For connecting pressure recorder to vessel. Flexible seamless helical tubing with protective armor braid and connections. 5 ft (1.52m) long
  • K10525 Burst Disk Assembly – Retrofit kit for Oxidation Pressure Vessel without burst disk assembly
  • 250-000-22F ASTM 22F Thermometer – Range: 204 to 218°F
  • 250-000-22C ASTM 22C Thermometer – Range: 95 to 103°C

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