– Stable, Corrosion-Resistant, and Precise for Fuel Oxidation Stability Evaluation
In the quality control of diesel, biodiesel, and distillate fuel oils, oxidation stability is a key indicator for evaluating a fuel's ability to resist oxidative degradation and the formation of gum and deposits during storage and use. The DFYF-158 Distillate Fuel Oil Oxidation Stability Tester is designed and manufactured in strict accordance with SH/T 0175 and ASTM D2274 standards. It is suitable for determining the oxidation stability of distillate fuel oils (such as diesel), making it an ideal choice for refineries, quality inspection centers, fuel storage and transportation companies, and research institutions.
1. Standard Compliance and Applicable Samples
The DFYF-158 complies with the following international and industry standards:
SH/T 0175 (Determination of oxidation stability of distillate fuel oil – Accelerated method)
ASTM D2274 (Standard Test Method for Oxidation Stability of Distillate Fuel Oil – Accelerated Method)
Applicable sample types:
Diesel (automotive diesel, marine diesel)
Biodiesel and its blended fuels
Distillate fuel oils
This method is the industry standard accelerated test for evaluating fuel oxidation stability and is widely used in fuel production, storage, transportation, and quality supervision.
2. Key Technical Specifications
Parameter | Specification |
Power Supply | AC220V, 50Hz |
Input Power | 3600W |
Temperature Range | Ambient ~ 99.9°C |
Temperature Accuracy | ±0.1°C |
Timer | 0 ~ 99.99 hours |
3. Performance Features
3.1 Integrated Modular Design
The main unit integrates the following four systems:
Water bath system – Provides a constant-temperature test environment
Flow control system – Precisely regulates oxygen flow rate
Temperature control system – Maintains stable test temperature
Condensate water circulation system – Ensures effective condensation
3.2 Corrosion-Resistant Construction for Long Service Life
The water-cooled section features a stainless steel inner shell – corrosion-resistant and easy to clean
The outer shell is finished with spray coating – aesthetically pleasing and resistant to corrosion
The entire unit is suitable for long-term operation in humid or salt-spray environments
3.3 Intuitive and Convenient Flow Control
The flow control unit consists of flow meters and related components, allowing operators to intuitively and easily adjust the oxygen flow rate to meet the stringent requirements of the test standard.
3.4 Precise Temperature Control with Uniform Distribution
A digital temperature controller controls the heating tube power on/off
Motor-driven stirring ensures uniform water bath temperature distribution
Temperature control accuracy as high as ±0.1°C – ensuring highly consistent test conditions
3.5 Mobile and Attractive Design
Equipped with mobile casters (depending on configuration) – the unit can be easily moved
Compact structural design with attractive appearance – suitable for both laboratory and industrial field use
4. Comparison with Traditional Oxidation Stability Testers
Feature | Traditional Basic Oxidation Stability Tester | DFYF-158 Professional Model |
Temperature control method | Manual or simple control | Digital controller + motor stirring, ±0.1°C |
Water bath material | Ordinary metal or plastic | Stainless steel inner shell – corrosion-resistant |
Flow adjustment | Manual valve, no flow display | Flow meter for intuitive adjustment |
Condensation system | Basic water cooling or none | Condensate water circulation system |
Mobility | Fixed or heavy | Mobile, attractive design |
Standard compliance | Partial | Fully compliant with SH/T 0175 / ASTM D2274 |
5. Typical Applications
Refinery quality control laboratories – Routine oxidation stability testing of diesel and distillate fuel oils
Biodiesel production facilities – Oxidation stability evaluation of biodiesel and its blended fuels
Fuel storage and transportation companies – Monitoring of fuel oxidation deterioration risk during storage
Third-party testing agencies – Standard oxidation stability analysis of batch samples
Research institutions – Evaluation and research of fuel antioxidant additives
6. Test Principle (Brief)
A filtered distillate fuel oil sample is placed in an oxidation tube. The tube is then immersed in a 95°C water bath while a constant flow of oxygen is passed through the sample for 16 hours (standard test duration). After oxidation, the amount of gum and sediment formed is determined to evaluate the fuel's oxidation stability.
7. Service and Support
We provide full technical support – from installation and commissioning to operator training and after-sales maintenance. The DFYF-158, with its precise temperature control, corrosion-resistant design, and user-friendly operation, is a reliable tool for your distillate fuel oil oxidation stability testing needs.
About Us
With nearly 40 years of specialized experience, Dalian Analysis Instrument Factory is a leading manufacturer of petroleum product testing instruments. We are ISO 9001 (2000) certified, ensuring reliable quality assurance in design, production, and after-sales service.
Our product line covers more than 100 varieties, including analyzers for gasoline, kerosene, diesel, lubricating oils, greases, and general laboratory equipment.
Contact Us
For standard models or customized solutions – we are here to help you improve your distillate fuel oil oxidation stability testing capabilities.
Sales Email: [lovecarlos2000@gmail.com]
24-Hour Hotline: +86 15941156556
