ISO/IEC 17025 Accredited, NIST Traceable Calibration Services

Our calibrations are competently and accurately performed by trained and experienced personnel, and are well documented by concise, complete and easy to understand reports.

CALIBRATION: The set of operations which establish, under specified conditions, the relationship between values indicated by a measuring instrument…, and the corresponding known values of a measurand. (from ISO 17025, ‘definitions’). Many quality systems require that calibrated or certified (the terms are often used interchangeably) thermometers, hydrometers or other devices be used where precise measurements are of critical importance, and/or to verify or calibrate the instruments used routinely in the laboratory.


Our A2LA accreditation covers the calibration of:

Temperature Calibration

From -196 to 1000 °C
or -320 to 1800 °F

ASTM, glass lab and digital thermometers, thermocouples, thermistors, PT100 sensors, RTDs, PRTs, bimetal and industrial thermometers.

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PRT Calibration

From -196 to 420 °C
Platinum Resistance Thermometers (PRTs) and other resistance sensors

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Hydrometer Calibration

From .620 to 2.000 Specific Gravity and equivalents in other scales
Specific gravity hydrometers, API hydrometers, Baumé hydrometers, Kg/M3 (density) hydrometers, Brix hydrometers, Proof hydrometers.

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Weight Calibration (mass)

1 mg to 5 kg
ASTM and OIML laboratory weights

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Volume Calibration

From 0.1 ml to 2000 ml
Burets, pipets, volumetric flasks, graduated cylinders, volumetric glassware.

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Please see our A2LA Scope of Accreditation for specifics of our accreditation, uncertainties, etc.