Kimax 45315-50 Borosilicate Glass 50mL Unmatched APHA Nessler Color Comparison Tube (Case of 6)
- Nessler tubes are standardized glass tubes used to fill with standard solution colors for visual color comparison with similar tubes containing solution samples.
- Shadowless bottom transmits undistorted light.
- no dark spots form when tube is filled with liquid and viewed from the top using a light source beaneath the tube.
- Tall and narrow tube provides a much longer scale length.
- Rings and legend are durable white ceramic enamel.
- rings coincide with specific volumes of liquid.
- Designed from Federal specification NNN-T-175, Type 1, Class 2 requirements.