SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 & ANSI/NCSL Z540-1-1994
Some items we calibrate include temperature controllers, ovens, chart recorders, infrared guns, freezers, temperature and humidity devices, and handheld thermometers.
In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to our laboratory to perform the following Thermodynamic calibrations.
Full details are listed below. You can also search all of our accredited calibrations or learn more about our in-lab calibration service.
View our Electronic Test Stand | View our Temperature/Humidity Chamber
Thermodynamic Calibration Scope Includes:
| Parameter/Equipment | Range | CMC2, 6 (±) | Comments |
|---|---|---|---|
| Relative Humidity – Measure: Hygrometers, Chart Recorders, Thermo-Hygrometers, Data Loggers3 | (10 to 95) % RH | 1.3 % RH | Method: ACP-037; Vaisala SP2000-20R, Red Lion PAX panel meter |
| Temperature Measure – Chart Recorders, Thermo-Hygrometers, Data Loggers, Controllers, Thermometers3 | (-40 to 100) °C | 0.08 °C | Method: ACP-037; Vaisala SP2000-20R, 7510 DMM with RTD probe |
| (> 100 to 300) °C | 0.13 °C | ||
| (> 300 to 1205) °C | 0.9 °C | ||
| Infrared Temperature – Measuring Equipment3 λ = (8 to 14) μm |
(35 to 100) °C | 0.6 °C | Method: ACP-037 Fluke 4181 precision infrared calibrator, ε = 0.95 |
| (100 to 200) °C | 0.66 °C | ||
| (200 to 350) °C | 0.86 °C | ||
| (350 to 500) °C | 1.2 °C | ||
| (500 to 1200) °C | 2.0 °C | Pegasus R, ε = 0.995 | |
| Ovens, Furnaces, Chambers & Freezers3 | (-30 to 0) °C | 1.4 °C | Method: ACP-037; ASTM E145; uniformity Keithley DMM7510 with RTD probe |
| (0 to 1200) °C | 1.7 °C | Omega DAQ56 data acquisition system & thermocouples |
Notes from the A2LA scope:
- 2 CMC (Calibration & Measurement Capability) is the smallest uncertainty the lab can achieve within its scope for routine calibrations of nearly ideal equipment, expressed at approximately 95 % confidence (k = 2). The actual uncertainty of a specific calibration may be larger depending on the customer’s device and conditions.
- 3 Field (on-site) calibration service is available for this calibration. Uncertainties achievable at a customer’s site are normally expected to be larger than the CMC listed.
- 6 The type of instrument or material being calibrated is defined by the parameter; the lab can calibrate instruments that measure or generate values in the ranges listed.
Source: A2LA Scope of Accreditation, Certificate No. 1848.01 (Revised 09/11/2025). The official PDF is the controlling document.
Have a need for Thermodynamic calibration products or services in Canton, Akron, Cleveland, Columbus or throughout Ohio?


