6630-00-066-0004 (STD1199-30)
NSN 6630-00-066-0004 (NIIN 00-066-0004) is a ph electrode in Federal Supply Class 6630, Chemical Analysis Instruments — an item designed to be used with a ph meter or a variety of analyzers to determine hydrogen ion concentrations or oxidation reduction potentials of a solution. Manufacturer part number STD1199-30 (Leeds And Northrup Co A Unit Of, CAGE 31922).
NIIN assigned January 1963; DEMIL A (none required); export Schedule B 9027.50.5000. Supersedes 6630-00-066-0005 (2023).