Lovibond AF509/C Marine Diesel Fuel ASTM Comparator — product documents
Official English PDF documents for the listed product models, covering features, technical specifications and configuration information.
View resource →Product overview
AF509/C provides rapid on-site colour grading of F76 marine diesel using a limited-range ASTM glass disc for fuel identification and quality control.
Key features
- An integrated prism brings the sample and comparison fields together for colour discrimination; ultrasonic sealing protects the optics.
- Calibrated glass standards represent discrete, colour-stable grades for direct sample matching.
- The 4/81 disc covers ASTM colour values 1, 2, 3, 3.5, 4, 4.5 and 5 for F76 marine diesel using 33 mm cells.
- A Daylight 2000 lighting unit can be ordered separately for consistent viewing conditions.
Models and part numbers
| Part number | Model | Range / purpose |
|---|---|---|
| 415090 | AF509/C | F76 marine diesel, ASTM Colour 1.0–5.0 |
Technical specifications
| Measurement system | Two-field visual comparison |
|---|---|
| Range / object | 1.0–5.0 ASTM Colour; 33 mm path length |
| Applicable standards | ASTM D1500, ASTM D6045, ISO 2049 |
| Colour type | Transparent |
| Portability | Portable |
Standard delivery
- Sturdy carrying case
- Comparator 2000+
- 4/81 ASTM diesel-fuel disc, precalibrated at 1, 2, 3, 3.5, 4, 4.5 and 5
- Two W680.OG.33 mm cells
- Kit instructions
Applications
For on-site colour checks of F76 marine diesel and related petroleum products.