This freestanding Cryule® cryogenic ampule is unscored and designed for biological sample preservation in glass. It is made from low extractable borosilicate glass that conforms to USP Type I and ASTM E 438 Type I, Class A requirements. Can be used in the vapor phase of liquid nitrogen. Special design allows for storage at low temperatures as well as rapid thawing. Capacity: 1mL. O.D. x Height: 10.5 x 61mm. Material: Borosilicate Glass. Color: Clear. Wheaton #: 651462.