ResinTech MBD-ULTRA is a 2:3 volumetric mixture of CG8-H-BL (a dark-colored hydrogen form cation resin) and SBG1-OH (a hydroxide form type 1 strong base anion resin). The ULTRA grade means it has been functionally tested to produce 18 MΩ resistivity and under 2 ppb of TOC.
ResinTech MBD-NANO is a 2:3 volumetric mixture of a dark-colored hydrogen form cation resin and a hydroxide form type 1 strong base anion resin. The NANO grade means it has been functionally tested to produce 18 megohm resistivity and under 2 ppb of TOC.