NOAA: Relative Humidity Calibration Standard built to Specifications

Description: Number of equipment to meet performance criteria: max. of two pieces of equipment: 1 to 2 pieces of equipment to meet full sensor measurement requirements for dew/frost point range and rh measurement range. All other sensor measurement requirements must apply to both units if more than one unit is used. Sensor measurement requirements: dew/frost point measurement range: equal to or better than -62 deg.c to 54 deg.c; dew/frost point accuracy (Max): +/- 0.1 deg.c; reproducibility (Max): +/- 0.05 deg.c; rh measurement range at 20 deg.c: 1 - 100%; display resolution: less than or equal to 0.01 deg.c; ppmv, min.: 2.5. See attached file.