Product Information
- 50ml
- Made of glass, good thermal stability, chemical stability, mechanical properties,high transparency
- Standardized glass tubes used to fill with standard solution colors for visual color comparison with similar tubes containing solution samples
- In contrast, two colorimetric tubes were placed in front of white paper of the same degree of illumination, and the color difference was observed with the naked eye
- Color comparison tubes are used for visually comparing solution sample colors
