The aniline point is defined as the minimum temperature at which equal volumes of aniline and petroleum sample are completely miscible. It is widely used as an indicator of the aromatic hydrocarbon content in petroleum products. Oils with lower aniline points generally contain higher aromatic content, while higher aniline points indicate higher paraffinic content.

This fully automatic Aniline Point Tester integrates microprocessor temperature control, optical detection technology, and intelligent cloud-point recognition, enabling accurate determination of the turbidity point during the aniline point test. The instrument supports testing of both transparent and opaque samples, providing reliable results for petroleum laboratories.

With automated detection, data storage, and advanced temperature control, the instrument offers high precision, stable operation, and efficient laboratory testing for petroleum product analysis.

The ASTM D611 Aniline Point Tester is used for determining the aniline point of petroleum products and hydrocarbon solvents.

• Diesel fuel
• Jet fuel
• Lubricating oils
• Hydrocarbon solvents
• Petroleum distillates
• Mineral oils

Typical application environments include:

• Petroleum refineries
• Lubricant manufacturing plants
• Fuel quality control laboratories
• Petrochemical research institutes
• Inspection and certification laboratories

The instrument adopts an STM microprocessor control system with adaptive PD temperature control algorithm, automatically adjusting the heating curve according to the requirements of the testing standard.

The system automatically detects the appearance of turbidity during heating, accurately determining the aniline point and automatically generating test results.

A non-contact infrared detection system monitors the entire testing unit, ensuring reliable and precise measurement.

The instrument can measure both transparent and opaque samples, providing high-precision turbidity recognition.

An optional external circulating cooling bath allows testing of petroleum products requiring lower temperature aniline point measurements.

A differential detection system automatically corrects system deviation, and the instrument stops the test and issues an alarm when temperature limits are exceeded.

The analyzer can store up to 10,000 test records, enabling convenient data retrieval and historical analysis.

est data can be exported via USB drive and transferred to MS Excel or laboratory management systems (LMS).

The instrument supports multiple language display options, and the software can be upgraded when testing standards are updated.

The Automatic Aniline Point Tester complies with the following testing standards:

• ASTM D611 – Standard Test Method for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
• GB/T 262 – Determination of Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents

These standards are widely used for evaluating aromatic content and compatibility characteristics of petroleum products.

Accurate Aromatic Content Evaluation

Provides reliable measurement of the aniline point for petroleum products and hydrocarbon solvents.

Fully Automated Testing

Automatic turbidity detection and temperature control ensure accurate and repeatable test results.

High-Precision Optical Detection

Non-contact infrared detection and photoelectric sensors enable precise identification of turbidity points.

Intelligent Data Management

Large internal storage and USB data export simplify laboratory data management.

Ideal for Petroleum Testing Laboratories

Widely used in petroleum refineries, fuel testing laboratories, lubricant manufacturers, and research institutes.