MIL-DTL-81248 Detector Pad, Free WaterThis specification establishes the formulation and manufacturing requirements for a free water detector pad. This uranine coated paper disc is used with the Model Number MK II Free Water Detector, MIL-D-81227; the Type III, Detector, Contaminated Fuel, MIL-D-22612; and the ASTM-D3240 Test Pad Rater.