Kimax 45315B-100 Borosilicate Glass 100mL Nessler APHA Standard Color Comparison Tube (Matched Set of 12)

APHA Nessler Tubes in matched sets of 12. 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. Narrower and taller with a much longer scale length than 45310. The 50mL size is specifically mentioned by the American Public Health Association in Standard Methods for the Examination of Water and Waste Water (Method 4500-NH). 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. Supplied in a matched set of 12. Graduated ring scale of any of the tubes will not vary by more than 2.0 mm for the 100mL from that of any other tube within the set. Graduations: at 100mL. Dimensions (O.D. x L): 24mm x 375mm. Scale Length: 275mm-295mm. Kimble #: 45315B-100.

• 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
• Supplied in a matched set of 12; graduated ring scale of any tube will not vary by more than 2.0mm from that of any other tube within the set
• 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