Vaisala

(A2LA Cert. No. 2083.01) 11/20/2025 Page 2 of 2 III. Thermodynamics Parameter/Equipment Range CMC2, 3 (±) Comments Relative Humidity – Measure (10 to 30) % RH (> 30 to 45) % RH (> 45 to 95) % RH 0 % RH 0.50 % RH 0.60 % RH 0.62 % RH 0.10 % RH Two pressure humidity chamber Thunder Scientific 2500 Vaisala DMT348 dewpoint transmitter Temperature – Measure (-80 to 180) °C (-90 to -80) °C (-80 to -70) °C (-70 to -55) °C (-55 to -40) °C (-40 to 50) °C (50 to 90) °C (0 to 15) °C (> 15 to 25) °C (> 25 to 40) °C 0.054 °C 0.090 °C 0.080 °C 0.070 °C 0.060 °C 0.050 °C 0.060 °C 0.34 °C 0.13 °C 0.19 °C Fluke Hart Scientific 2560 w/5614 or 5615 probe Fluke Hart Scientific 2560 w/12005 PRT Thunder Scientific 2500 Dewpoint (> -60 to -10) °C (> -60 to 10) °C (-80 to -60) °C 0.73 °C 0.70 °C 0.90 °C Thunder Scientific 3900 MBW 373LX _____________________________________________________ 1 This laboratory offers commercial calibration service. 2 Calibration and Measurement Capability Uncertainty (CMC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration. 3 The type of instrument or material being calib rated is defined by the parameter. This indicates the laboratory is capable of calibrating instruments that measure or generate the values in the ranges indicated for the listed measurement parameter. 4 This scope meets A2LA’s P112 Flexible Scope Policy. 5 In the statement of CMC, percentages are percentages of reading, unless otherwise indicated.