GG-T-321D, FEDERAL SPECIFICATION: THERMOMETERS, SELF-INDICATING, LIQUID-IN-GLASS FOR MACHINERY AND PIPING SYSTEMS (11 JUL 1977) [NO S/S DOCUMENT]

GG-T-321D, FEDERAL SPECIFICATION: THERMOMETERS, SELF-INDICATING, LIQUID-IN-GLASS FOR MACHINERY AND PIPING SYSTEMS (11 JUL 1977) [NO S/S DOCUMENT]., This specification covers self-indicating, liquid-in-glass, thermometers for those applications and temperature ranges specified, the other applications within the limits of range and accuracy specified herein.