PHYSICS GROUP
Humidity Laboratory
About Us
Moisture Laboratory provides services for human health, food, pharmaceutical, energy, battery and electronics industries by measuring moisture in gases (especially in air) and moisture in solids.
The main objective of the laboratory is to provide and develop the infrastructure to measure humidity parameters such as relative humidity, absolute humidity, dew-point, water vapor pressure and air temperature in a traceable way to SI units. High accuracy (with an uncertainty of 0.07 °C - 0.2 °C) is provided in air temperature measurements.
Calibration services: Hygrometers, Humidity/temperature data loggers, Dew-point meters, Ambient condition loggers, Thermometers. In addition, controlled environments can be created and various tests can be performed. Moisture determination of solids (by drying, titration, etc.) is carried out; accurate measurement is aimed especially in cereals and soil.
Systems for special applications such as ultra dry air (<50 ppb) are also available. The laboratory participates in various national and international benchmarks to ensure measurement accuracy. It is active in BIPM, EURAMET, COOMET, GULFMET and SMIIC technical committees.
Fields of Activity
- Calibrations of dew-point moisture meters
- Calibrations of relative humidity meters
- Calibrations of air temperature meters
- Moisture content measurements in sawdust, paper, soil, etc. samples
Training and counseling:
- Training on dew-point meter calibrations and uncertainty calculations
- Relative humidity meter calibrations and uncertainty calculations training
- Moisture content measurements and uncertainty calculations in materials training
- Air conditioning cabinet humidity and air temperature characterization and uncertainty calculations training
Services Provided
First level relative humidity and temperature measurement
- 11% %rh - 95% %rh relative humidity,
- -10 °C - 70 °C air temperature,
- Reference dew-point humidity and temperature meter at atmospheric pressure
Second level relative humidity and temperature measurement
- 20 %rh - 90 %rh relative humidity,
- 10 °C - 90 °C air temperature,
- At atmospheric pressure
Air temperature measurements
- -In humidity source in the range -10 °C to 70 °C,
- -40 °C - 100 °C in an air conditioning cabinet
Dew-point/wet-point measurements
- -30 °C - 60 °C dew point,
- -10 °C - 70 °C air temperature
- In the cabin or on the air line
Ultra-low dew-point measurements
- 80 °C - 10 °C freezing/dew point
- With reference devices in the air line
Moisture measurement (Loss-on-Drying method)
- 2.7 %mc - 26.6 %mc in sawdust, paper, etc. samples
Characterization of moisture sources and air conditioning cabinets
- In accordance with relevant standards
Testing services in air conditioning cabinets
- Conducting experiments according to appropriate standards
Participation in international comparisons
- Dew-point, air temperature and relative humidity parameters
Technical Hardware and Equipment
| System | Capacity |
|---|---|
| Primary level dew-point temperature measurement system | Dew/dew-point temperature range of -80 °C to 10 °C at atmospheric pressure |
| Primary level relative humidity and air temperature measurement system | At atmospheric pressure; -35 °C to 60 °C dew/wet-point temperature range -10 °C to 70 °C air temperature range Relative humidity range from 11 %rh to 95 %rh |
| Secondary level relative humidity and air temperature measurement system | Atmospheric pressure -40 °C to 180 °C air temperature range With 10 %rh in the air temperature range 10 °C to 95 °C 95% %rh relative humidity range |
| Moisture content measurement system in the material range from 2.7 %mc to 26.6 %mc | 2.7 %mc to 26.6 %mc range |
* Services in our laboratory are provided under ambient conditions of 21 °C ± 3.0 °C temperature and (45 ± 15) % rh humidity values.
PHYSICS GROUP
Projects and Collaborations
Connection: https://www.prispectemp.ptb.de/home
Connection: https://www.sommet-project.eu/home
Connection: https://www.prometh2o.eu/
Connection: https://www.meteomet.org/
For more informationContact Us
Email: ume@tubitak.gov.tr
Phone: 0 (262) 679 5000