KIMAX® 10mL graduated culture tube has a smooth, fire-polished top. Graduation line is located at the 10mL level and is intended primarilyfor use in the testing of milk for the presence of bacteria by the methylene blue reductase test which is described in APHA Standard Methods for the Examination of Dairy Products. Designed from ASTM Specification E982, Type II requirements. Capacity: 10mL. Approx. Outer Diameter: 16mm. Approx. Length: 150mm. 12/Pack; 72/Case. Kimble® #: 45071-10.