The NIST Industrial Thermometer Calibration Laboratory (ITCL) is responsible for calibrating several different types of industrial thermometers, including:
- Liquid-in-glass (LIG) thermometers
-
- mercury filled -- DISCONTINUED as of 1-Mar-2011
- organic filled (partial and total immersion)
Calibrations in this laboratory are made by comparison with an ITS-90 calibrated standard platinum resistance thermometer in stirred liquid baths in the temperature range –196 ºC to 550 ºC. Additionally, the fixed-point measurement at the ice-melting point (0 °C) is available.
Every LIG thermometer submitted must be uniquely identified by a serial number and must pass a preliminary examination for fineness and uniformity of graduation; for cleanliness of the liquid and the capillary bore; for freedom from moisture, gas bubbles, and cracks in the glass; for adequacy or omission of gas filling where needed; for insufficient annealing; and, for misnumbered graduations.
How to Arrange a Calibration
- Contact the staff member in charge of the calibration service for your artifact with any technical or calibration cost questions.
- Calibrations are performed on a first come first serve basis.
- Ship your artifact with a copy of the purchase order. Use a sturdy box in which we can return the calibrated instrument.
- The purchase order may be sent to contact by e-mail, fax, or mail. Please include the following information:
- service ID for the calibration
- model and serial number of your artifact
- customer contact name, address, phone, and e-mail
- return shipping method (e.g., shipping account number)
| Mailing Address |
|
Shipping Address |
| NIST |
|
NIST |
| Attn: Dawn Cross |
|
Attn: Dawn Cross |
| 100 Bureau Drive |
|
100 Bureau Drive |
| MS 8363 |
|
Bldg. 221, Rm. B308 |
| Gaithersburg, MD 20899 |
|
Gaithersburg, MD 20899 |
Description and Cost of Services
Liquid-in-Glass Thermometers
|
Service ID
|
Fee/pt, US$
|
Description of Service
|
|
31010C
|
325
|
0 °C to 150 °C (32 °F to 300 °F)
|
|
31020C
|
441
|
151 °C to 315 °C (301 °F to 600 °F)
|
|
31030C
|
441
|
316 °C to 550 °C (601 °F to 1022 °F)
|
|
31040C
|
441
|
-1 °C to -110 °C (31 °F to -166 °F)
|
|
31050C
|
325
|
Liquid N2 (-196 °C or -321 °F)
|
|
31100C
|
at cost
|
Quantity Tests of LIG thermometers
|
Additional Services
|
Service ID
|
Fee, US$
|
Description of Service
|
|
31190S
|
267
|
Replacement Report
|
|
31250S
|
97
|
Additional copy of report at time of test
|
|
31260S
|
at cost
|
Special thermometry services, by prearrangement
|
Calibration Measurement Uncertainties
LIG type: Organic, Total Immersion
|
Temperature Range, °C
|
Graduation Interval, °C
|
U (k=2), °C
|
|
-196
|
1.0
|
0.2
|
|
-98 to 0
|
0.1
|
0.2
|
|
-110 to 0
|
0.1
|
0.2
|
General information regarding NIST calibration services may be found on the NIST Technology Services Calibration webpage.
