Lovibond AF347 Organic Impurities in Fine Aggregates Kit — product documents
Official English PDF documents for the listed product models, covering features, technical specifications and configuration information.
View resource →Product overview
AF347 is a portable visual kit for checking organic impurities in fine aggregates to ASTM C40. The sample is compared directly with stable glass standards without preparing a colour reference solution.
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.
- Gardner (1933) standards 5, 8, 11, 14 and 16 correspond to organic plate grades 1–5; no freshly prepared colour-standard solution is required.
- A Daylight 2000 lighting unit can be ordered separately for consistent viewing conditions.
Models and part numbers
| Part number | Model | Range / purpose |
|---|---|---|
| 413470 | AF347 | Organic-impurity assessment of fine aggregates to ASTM C40 |
Technical specifications
| Measurement system | Two-field visual comparison |
|---|---|
| Range / object | Organic plate grades 1–5; Gardner (1933) values 5, 8, 11, 14 and 16 |
| Applicable standards | ASTM C40 |
| Colour type | Transparent |
| Portability | Portable |
Standard delivery
- Sturdy carrying case
- Gardner (1933) disc, 5 steps
- 300 ml bottle calibrated at 130 and 200 ml
- 100 ml square bottle with black ribbed cap
- Blind plug for 444A bottle; sodium hydroxide reagent is not included
Applications
For construction-material and aggregate quality control where a rapid, easily interpreted organic-impurity check is required.