H&D Fitzgerald

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Liquid Density Standards

Certified Reference Materials for Liquid Density

We produce Liquid Density Standards which are calibrated under our ISO 17025 accreditation. These are supplied in sealed glass ampoules which hold around 10ml, and come complete with their calibration certificates. These Certified Reference Materials (CRMs) are linked to recognised national standards of mass, pressure and temperature, and provide an effective route to traceable calibration for all types of laboratory density meter.

We produce a range of standards to meet the requirements of a wide variety of industries and applications. We can supply Materials Safety Data Sheets (MSDS) data for each type of liquid used.

The calibration certificate supplied with each ampoule shows the densities determined by hydrostatic weighing for that particular batch of liquid. Some liquids are only calibrated at 20°C, others over a wide range of temperatures. We only supply liquids which have passed through the hydrostatic weighing system, thus ensuring that the standards are of the highest quality.

Our Range of Standards

The following CRMs for Liquid Density are normally available from stock – see ordering information for more details.

Liquid Density at 20°C (kg/m3) Temperature Range (°C) Uncertainty (kg/m3)
2,2,4 trimethylpentane 692 15-25 ±0.01
Dodecane 749 10-50 ±0.01
Lube oil Largo ~8 mPa·s @40°C 824 10-50 ±0.01
Lube oil Largo ~32 mPa·s @40°C 867 10-50 ±0.01
Lube oil Largo ~ 103 mPa·s @ 40°C 879 15-50 ±0.01
Lube oil A90 ~160mPa·s @40°C 887 15-50 ±0.01
Ethanol in water ~38.5% ABV 948 20 ±0.03
Ethanol in water ~9% ABV 985 20 ±0.01
Water 998 20 ±0.01
Seawater 1024 10-35 ±0.01
Dextrose in water ~10% w/w 1037 20 ±0.03
Dimethylphthalate ~17mPa·s @20°C 1191 15-25 ±0.02
Sodium bromide in water ~27% w/w 1249 15-25 ±0.01
Caesium chloride ~48% w/w 1548 15-25 ±0.05
Tetrachloroethylene 1623 10-50 ±0.015



Standards Coming Soon

A new oil density standard will be going into production shortly.

Liquid Nominal Density at 20°C (kg/m3)
Lube oil Largo 22 899