Kimble 45100 KIMAX Glass Test Tubes with Pennyhead Stoppers and Marking Spot have a round bottom. Uniform wall thickness for maximum service. Durable white ceramic enamel marking spot on each tube. Designed from ASTM Specification E982, Type III requirements. 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)
Cap. (mL): 18
O.D. x L (mm): 16 x 150