Letters “TC” on the flask indicate to contain

·         KIMAX® flask is permanently marked with an individual serial number and a marking spot

·         Supplied with a Certificate of Graduation Accuracy

·         Graduation ring blasted on the neck

·         Standard Taper ground glass stopper is supplied with the flask

·         Cylindrical bodies allow for better mixing, draining and withdrawal of samples by pipet

·         Wide base (circular for sizes 1, 2, and 5 mL and hexagonal for sizes 10 and 25 mL) imparts much greater stability than is possible with a conventionally shaped flask

·         Sizes 1-5 mL are designed from recommendations published by the Committee on Microchemical Apparatus of the Analytical Division, American Chemical Society, “Analytical Chemistry,” 28, page 1993 (Dec. 1956).

·         All sizes are designed from ASTM Specification E237, Class A serialized requirements

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements