Humidity Calibration

Graftel 17025-Certified Humidity Calibration Services

Graftel 17025-Certified Humidity Calibration Services

For over 30 years, Graftel’s experience in the design, fabrication, application and calibration of humidity instrumentation. This has made us a humidity calibration resource for many industries.
We have the capability to calibrate all types and sizes of humidity instrumentation. Our chambers can control and measure humidity, pressure and temperature simultaneously.
Calibrations may be performed using air, nitrogen, helium, or custom non-explosive/nontoxic gases.

Our two-temperature two-pressure generator allows for extreme accuracy RH  down to -80°C.

All humidity calibrations are traceable to the National Institute of Standards and Technology. (NIST) and are 17025 accredited.

Two-Temperature Two-Pressure Generator
Two-Temperature, Single-Pressure Generator

Graftel maintains two NIST-traceable primary humidity calibration systems. Each is built around a single pressure two temperature generator.
These two systems cover overlapping ranges so that they may be checked against each other. In addition, each system contains a working secondary standard. For more information as to our systems, please read below.

Humidity Calibration Services Include

RH sensors

Dial type gauges

Hygrometers


Gases

Gasses:

Ranges: