An automatic pour point tester is an analytical instrument used to determine the lowest temperature at which a petroleum product or fluid remains flowable under controlled cooling conditions.
An automatic pour point tester measures the lowest temperature at which oils, fuels, or lubricants can still flow by cooling the sample and detecting when movement stops under standardized conditions.
Determines lowest flow temperature of fluids
Used for oils, fuels, and lubricants
Supports ASTM and ISO test standards
Fully automated for consistent results
Critical for cold climate performance evaluation
Automatic pour point testers are used to:
Measure low-temperature flow properties of petroleum products
Evaluate lubricant performance in cold environments
Ensure compliance with ASTM and ISO standards
Support quality control in refining and manufacturing
Analyze fluid behavior under controlled cooling
The fluid sample is placed into a test chamber.
The system cools the sample at a defined rate.
Sensors monitor fluid movement using optical, pressure, or tilt detection.
The temperature at which flow stops is recorded.
Final pour point value is displayed and stored.
Fluids can become too viscous or solidify at low temperatures.
Pour point testing determines the lowest usable temperature.
Ensures accurate fluid performance
Prevents equipment failure in cold environments
Supports product formulation and quality control
Fully Automated Testers – Complete workflow automation
Semi-Automated Testers – Partial manual operation
Multi-Sample Systems – Parallel testing for high throughput
Benchtop Units – Compact laboratory models
Fully automated → Routine QC labs
Semi-automated → Low-frequency testing
Multi-sample → High-throughput labs
Benchtop → Space-limited labs
Temperature range and cooling rate
Detection method (optical, pressure, tilt)
Sample capacity and throughput
Compliance with standards
Repeatability and accuracy
Petroleum refining
Lubricant manufacturing
Chemical and petrochemical industries
Quality control laboratories
Research and academic institutions
Automatic pour point testers follow:
ASTM D97
ASTM D5949
ISO 3016
Cloud point testing (wax formation temperature)
Cold Filter Plugging Point (CFPP) testing
Low-temperature viscosity measurement
Manual pour point apparatus
Cloud point testers
CFPP analyzers
Viscometers
It measures the lowest temperature at which a fluid can still flow.
Petroleum oils, fuels, lubricants, crude oil, and synthetic fluids.
Pour point indicates flow limit, while cloud point indicates wax formation.
Typically 20 minutes to over 1 hour depending on method.
It ensures fluid usability in low-temperature environments.
ASTM D97, ASTM D5949, and ISO 3016.
Automatic pour point testers are essential instruments for determining the lowest temperature at which fluids remain flowable. By automating cooling and detection processes, they provide accurate, repeatable results for petroleum, chemical, and laboratory applications, ensuring product performance and compliance with universal testing standards.
