Shadowless bottom transmits undistorted light. There are no dark spots when the tube is filled with liquid and viewed from the top using a light source beneath the tube. Rings and legend are durable white ceramic enamel. Rings coincide with specific volumes of liquid.
- 45310 series is unmatched.
- 45310A series is supplied in matched sets of 6. Graduated ring scale of any of the six tubes will not vary by more than 3mm from that of any other tube within the set.
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.