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To meet industry needs for the in-house calibration of electronic densimeters, LNE proposes an array of 6 reference liquids for mass densities ranging from 700 g/dm3 to 1,820 g/dm3 at a temperature ranging from 5 °C to 60 °C with a relative uncertainty: 5 x 10-5.
Reference liquids available
LNE proposes an array of 6 reference liquids for densities ranging from 700 g/dm3 to 1,820 g/dm3. These liquids are intended to meet industry needs for the in-house calibration of electronic densimeters. The products available and their corresponding approximate density values at 20°C are listed below:
- N-HEPTANE: 700 kg.m-3
- N-TETRADECANE: 760 kg.m-3
- CUMENE : 860 kg.m-3
- WATER: 1,000 kg.m-3
- DIMETHYL PHTHALATE: 1,190 kg.m-3
- DIBROMOBUTANE: 1,820 kg.m-3
The mass density of liquids is determined using the pycnometric method with an uncertainty on the order of 5.10-5.
The liquids are delivered along with their safety data sheet in 250-mL, colored glass flasks.
Conservation and use conditions must be respected in order to guarantee the 6 months of calibration validity for all liquids supplied.
Accreditation details
These services are performed under COFRAC Accreditation No. 2-36 (in french)
List of sites and scopes available on www.cofrac.fr
Order reference liquids
NEW - You can now buy your reference liquids by density via our online shop
