Iodine flask with size 22 stopper Size 22 PTFE standard taper stopper is included A durable matte-finish ceramic enamel marking spot takes writing and erases easily Designed from ASTM Specification E1404, Type II, Class 3 requirements

Kohlrausch, Class A Borosilicate glass Calibrated to contain 20°C Mouth enlarged for easier introduction of sample Meet NBS requirements