Primary Navigation
Home > Publications Directory > Technical Bulletins > Fuel Cloud Point, Pour Point Measures Fluidity in Extreme Conditions
Fuel Cloud Point, Pour Point Measures Fluidity in Extreme Conditions
Cloud Point is the temperature at which wax crystals first appear in an oil or fuel. Pour Point is the lowest temperature at which a petroleum product will still pour. Both are used to determine at what temperature a petroleum product will maintain its fluidity in the field, which is helpful in identifying in which applications a particular fluid might perform best.
Cloud Point – For petroleum products and biodiesel fuels, cloud point is an index of the lowest temperature at which they can be utilized in certain applications. The specimen is cooled at a specified rate and examined periodically. The temperature at which a cloud is first observed at the bottom of the test jar, is recorded as the cloud point.
Pour Point – The pour point of a petroleum product is determined by cooling it at a specified rate and examining it at intervals of 3°C for flow characteristics. The lowest temperature at which movement is observed is its pour point.
- Cloud Point – ASTM D2500
Pour Point – ASTM D97 - Reporting Measurement
- Celsius
- Amount of Sample Needed
- 100 mL
- Test Limitation
- Lowest reportable result is -66°C.
Test Definitions
Cloud Point is the temperature at which wax crystals first appear in an oil or fuel.
Pour Point is the lowest temperature at which a petroleum product will still pour.
Standard Test Method Used
(click on image for larger version)
Quick Links
Top
News
POLARIS Laboratories® Expands into Central America
POLARIS Laboratories® is again extending its global reach with a new laboratory in Guatemala City. The expansion supports the company's global strategy for continued growth and is indicative of the strength and potential of the Central American market.
POLARIS Laboratories® Makes Inc. 5000 List Third Year in a Row
For the third year in a row, POLARIS Laboratories® has been named to Inc. Magazine's List of 5000 Fastest Growing Privately-Held Companies in America.
Training
Nashville
Cooling Systems Maintenance
March 6, 2012Nashville
Oil Analysis
March 7-8, 2012Houston
Cooling Systems Maintenance
April 17, 2012
Tradeshows & Conferences
UMA Motorcoach Expo
Long Beach, CA
February 8-12, 2012PepsiCo Summit & Tradeshow
San Antonio, TX
February 13-16, 2012
Secondary Navigation
