6630-00-497-2453 (PH1)
NSN 6630-00-497-2453 (NIIN 00-497-2453) is a ph meter in Federal Supply Class 6630, Chemical Analysis Instruments — an electrical instrument embodying a potentiometer circuit with suitable electrodes to determine the effective acidity or alkalinity of a solution. Manufacturer part number PH1 (Amstro Corp, CAGE 25758).
Key specs: portable; full characteristics table below. NIIN assigned February 1971; DEMIL A (none required); unit of issue EA (each); export Schedule B 9027.50.5000.