All of the thermometers noted Tank Gauging, refill in the preceding ASTM thermometer section are designed for use in a variety of cases for gauging temperature of liquids in storage or transport tanks. We have listed these units again below to offer them with the various cases available: To purchase any of the thermometers listed below with a NIST traceable, ISO/IEC 17025 accredited report of calibration in accordance with API Chapter 7 specification, please add -C to the part number. Example: 10059F-C, 10130F-S-WB-C