Lovibond Comparator 3000 AF228 Gardner Comparator — product documents
Official English PDF documents for the listed product models, covering features, technical specifications and configuration information.
View resource →Product overview
AF228 uses a pair of discs containing 18 glass standards for three-field visual grading of transparent samples across Gardner 1–18.
Key features
- Three-field viewing presents the sample with two adjacent standards for fast matching.
- The two discs can be set to limiting colours for rapid tolerance checks.
- Integrated tungsten-halogen illumination and standardising filters provide controlled viewing conditions.
Models and part numbers
| Part number | Model | Range / purpose |
|---|---|---|
| 345010 | AF228 | Gardner 1–18 |
Technical specifications
| Measurement system | Three-field visual comparison |
|---|---|
| Range / object | Gardner 1–18; 10.65 mm path length |
| Applicable standards | ASTM D509, ASTM D1544, ASTM D6166 |
| Colour type | Transparent |
| Portability | Benchtop |
Colour-disc scale values
| Part number | Disc | Scale values (Gardner) |
|---|---|---|
| 240010 | 4/30-1 | 1, 3, 5, 7, 9, 11, 13, 15, 17 |
| 240020 | 4/30-2 | 2, 4, 6, 8, 10, 12, 14, 16, 18 |
Standard delivery
- Comparator 3000 instrument
- 4/30-1 odd-number and 4/30-2 even-number Gardner glass discs
- Two 10.65 mm diameter test tubes
Applications
For Gardner grading of petroleum oils and waxes, chemicals, and edible oils and fats.