K10200 Automatic Aniline Point Apparatus with Automated Sampling System


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 and Benefits
• Conforms to ASTM D611 and related specifications

• For samples ranging from clear to very dark

• Temperature range 0 to 150C (32 to 302F)

• Digital temperature display


K10200 Automatic Aniline Point Apparatus
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 0C (32F) 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.

Automated Sampling System – Provides hands-free operation for aniline point determinations, preventing operator contact with the aniline, n-heptane, and test samples. Automatically adds exact volumes of the test components to the mixing chamber, followed by transfer of the test mixture to a waste container and rinsing of the mixing chamber with solvent at the completion of the test. Retrofit automated sampling system is available for existing aniline point systems. Please contact your Koehler representative for additional information.

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

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

Temperature Display: 0-999.9C

Electrical Requirements
115V, 50/60Hz, Single Phase, 0.4A
220-240V, 50/60Hz, Single Phase, 0.2A

Included Accessories
Standard Pyrex™ Test Cell with drain

Dimensions lxwxh,in.(cm)
14.5x8.5x20.5 (37x22x53)
Net Weight: 32.5 lbs (14.7kg)

Shipping Information
Shipping Weight: 46 lbs (21kg)
Dimensions: 8.2 Cu. ft.

Ordering Information



Product Description

Electrical Requirements


Automatic Aniline Point Apparatus

115V 50/60Hz


Automatic Aniline Point Apparatus

220-240V 50/60Hz


Automatic Sampling System

115-240V 50/60Hz

The K10280 Automatic Sampling System is factory installed on the K10200 and K10290 Automatic Aniline Point Apparatus or shipped separately as a retrofit for existing units.




Product Description

Temperature Range


ASTM 33F Thermometer

-36.5 to +107.5F


ASTM 33C Thermometer

-38 to +42C


ASTM 34F Thermometer

77 to 221F


ASTM 34C Thermometer

25 to 105C


ASTM 35F Thermometer

194 to 338F


ASTM 35C Thermometer

90 to 170C


Pyrex Test Cell with drain



Heating-Cooling Tube with platinum element



When inquiring about NIST traceable certified thermometers, please refer to the catalog number for the corresponding thermometer and replace the middle three zeros in the catalog number with 004. Example: 251-000-01C ASTM 1C Thermometer would be 251-004-01C ASTM 1C Certified Thermometer.