The Barnant 42632 EDTA titrant solution is intended for use in hardness determinations by drop-count titration. The marked dropping bottle (MDB) contains 100mL of 0.03N solution.

Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific, Fisher Scientific, Barnstead, and Nalgene brands, among others. The company is headquartered in Waltham, MA.