Kimble 43515 KIMAX Tall Form Nessler APHA Color Comparison Tubes, Unmatched. Shadowless bottom of each tube transmits undistorted light. Rings and legend are durable white ceramic enamel which correspond with specific volumes of liquid. The 50 mL size is specifically mentioned by the American Public Health Association in Standard Methods for the Examination of Water and Waste Water. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I Class A requirements.
(Sample Photo Displayed. Individual items may differ from the image shown)
O.D. x Ht. (mm): 24 x 375
Grad. at (mL): 50 & 100
Scale Length (mm): 275-295