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 setpoint 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 six-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 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. The baths are 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
• 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

Specifications

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

Maximum Temperature:

Solid Block Baths: 250°F (121°C)
2 Unit Water/Liquid Bath: boiling water
6 Unit Water/Liquid Bath: 250°F (121°C)

Power:

Solid Block Baths: 0-1300W or 0-2500W
2 Unit Water/Liquid Bath: 0-2000W
6 Unit Water/Liquid Bath: 0-3000W

K10404, K10405, K10495 - Oxidation Stability of Gasoline (Operational Video)