The Naval Surface Warfare Center Philadelphia intends to procure four (4) units of Salinity Sensor Standardization tool on a Sole Source basis from Electro-Chemical Devices, Inc.The proposed contract action is for supplies or services for which the Government intends to solicit and award with only one source under authority of FAR 13.106 (b).Any questions regarding this notice should be emailed to: stephanie.destefano@navy.milPhone calls will NOT be