Liquid Density
Our services in the calibration laboratory for liquid density
Based on our long-time experiences we offer accredited calibration services for liquid density according to ISO/IEC 17025 with DAkkS calibration certificate.
The metrological traceability of the measuring quantity liquid density is carried out using three recognized calibration methods.
| Hydrostatic weighing for determination of density reference liquids (primary method, own development) The metrological traceability to the national standard of the Physikalisch-Technische Bundesanstalt is realized via a quartz glass sphere. |
Manufacturing of density reference liquids
| Values / guidelines in kg/m³ at 20°C |
Designation of the density reference liquid |
|---|---|
| 690 | RF 10 |
| 720 | RF 15 |
| 816 | RF 20 |
| 820 | RF 50 |
| 827 | RF 100 |
| 832 * | RF 200 |
| 998 | RF 300 |
| 1250 | RF 400 |
| 1620 | RF 500 |
* new guide value 09/2024
DAkkS calibration of density meters
| Determination of density according to the Oscillating U-tube principle Calibration of density meters of different manufacturers in a measuring range from 600 kg/m³ to 2000 kg/m³ at reference temperature of 20 °C. For the calibration we use traceable reference density reference liquids of our own production. On customers request the calibration can be carried out at desired measuring points and at temperatures in the range between 15 °C and 50 °C. |
| Density range | Temperature range |
|---|---|
| 600 kg/m³ to 2000 kg/m³ | 15 °C to 50 °C |
DAkkS calibration of hydrometers according to the Cuckow-method
| Cuckow-method for calibration of hydrometers (primary method, own development) The reference standard device according to the Cuckow-method ensures the metrological traceability to the national standard of PTB. The calibration procedure is based on the Archimedean principle. Hydrometers are also named as density spindles and are measuring devices which are used to determine molar contents. |
| Density range | Temperature range |
|---|---|
| 600 kg/m³ to 2000 kg/m³ | 20 °C |
Our concrete range of services, including the expanded measurement uncertainties, can be found in our current price list for liquid density.
Our complete range of services, including expanded measurement uncertainties, can be found in the annex to our current Accreditation Certificate (D-K-15186-01-02).
Calibration with certificate (not part of the accreditation scope)
We measure your liquid samples for you:
| Density range | Temperature range |
|---|---|
| 0 kg/m³ to 3000 kg/m³ | 15 °C to 90 °C |
