Automatic Aniline Point Apparatus, Koehler Instrument Company

Performs aniline point and mixed aniline point determinations automatically by means of a modified thin film technique (ASTM D611 Method E). The sample-aniline mixture is directly heated by a platinum immersion heater and the aniline point is detected photoelectrically. Temperature is displayed on a large LED indicator. Built-in pressure regulator and solenoid valve permit the use of cooling air for quicker cooling cycles or to determine subambient aniline point temperatures. Aniline points as low as 0°C (32°F) can be determined with the use of refrigerated cooling air. Equipped with variable controls for heater, light source and stirrer speed. Cabinet exterior surfaces have a chemical resistant polyurethane enamel finish.

Test Method:

Aniline point is used to characterize pure hydrocarbons and to indicate the aromatic content of hydrocarbon mixtures. Equal volumes of aniline and sample or sample plus n-heptane are stirred together while being heated at a controlled rate. After the two phases become miscible, the mixture is cooled at a controlled rate and the temperature at which the two phases separate is the aniline point or mixed aniline point of the sample.

Features:

• Conforms to ASTM D611 and related specifications
• For samples ranging from clear to very dark
• Temperature range 0°C to 150°C (32°F to 302°F)
• Digital temperature display

Included Accessories:

• Standard Borosilicate Glass Test Cell with drain

Specs:

Conforms to the specifications of: ASTM D611; IP 2; ISO 2977; DIN 51775; FTM 791-3601; NF M 07-021

Testing Range: 0 to 150°C (32 to 302°F)

Temperature Display: 0-999.9°C