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Non Volatile Residue Monitor (NRM)FMT’s Nonvolatile Residue Monitor is a one-of-a-kind instrument designed to measure dissolved inorganic material, including colloidal silica, at the part per trillion level. The NRM is the only on-line water monitor capable of detecting colloidal silica in high purity water systems. Introduced in November 2006, the new, all digital NRM replaced the original NRM developed in the early 90s.
