Oxidation Stability Test Apparatus for Gasoline and Aviation Fuels

Description

Oxidation Pressure Vessel 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. Water/Liquid Baths–Two different models, both equipped with low liquid level controllers in accordance with the latest ASTM specifications. Two-unit analog controlled 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 microprocessor temperature control that provides quick temperature stabilization without overshoot. Dual LED displays provide set point and actual temperature values in °C/°F format. A built-in over temperature control circuit interrupts power should the bath temperature exceed a programmed cut-off point. Both models feature double-wall insulated construction with stainless steel tanks, support racks and port covers. Order thermometer separately. The 6 unit model can be ordered with interchangeable racks for performing the ASTM D942, ASTM D323 and D1298 test methods–please contact your Koehler representative for additional information. Solid Block Baths–Insulated aluminum block baths available in two or four-unit capacity. Baths feature microprocessor temperature control with built-in over temperature protection and dual LED displays for set point 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. Mechanical Recorders—Spring-wound circular chart recorder measures pressure inside oxidation pressure vessel for break point and induction period determinations on gasoline. Housed in a steel case suitable for wall mounting. Order accessory bronze tubing for connection to oxidation pressure vessel. Suitable for oxygen service. Includes 100 24-hour charts. Oxidata® Pressure Measurement Systems Complete electronic measurement systems for plotting pressure versus time and temperature in oxidation testing of fuels. Each system includes transducers, USB multiplexer, software, and mounting and connecting hardware. Systems are available in two, three and four pressure vessel configurations, and additional channels can be added for up to a total of twelve pressure and four temperature channels.

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.

FEATURES:

Oxidation Stability Test Apparatus

Conforms to ASTM D525, D873, ISO 7536 and related specifications

Oxidata® Pressure Measurement System

Available in two, four or six-unit configurations

Choice of water/liquid or solid block heating baths

Oxidation pressure vessel incorporates burst disk assembly

Water/Liquid Oxidation Baths

Water/liquid baths conforming to ASTM and related specifications.

Constant temperature baths for heating K10500 Oxidation Pressure

Vessels in accordance with ASTM specifications.

Solid Block Oxidation Baths

Solid block baths conforming to ASTM and related specifications.

Constant temperature baths for heating K10500 Oxidation Pressure

Vessels in accordance with ASTM specifications.

Mechanical Pressure Measuring and Recording Equipment

One-pen or two-pen mechanical recorders

Pressure gauge for aviation fuel tests

Oxidata® Pressure Measurement Systems

 Electronic pressure measurement systems exclusively designed for ASTM oxidation test methods

Powerful Oxidata® software for Windows® environments

Monitors up to twelve pressure and four temperature channels

Automatic end-point detection

Real-time average bath temperature display

Can be installed to most manufacturer's fuels oxidation test apparatus