We produce a variety of liquid density standards with ISO 17025 accreditation. Our range of standards is designed to meet the requirements of a wide variety of industries and applications. All our Liquid Density Standards are supplied with a UKAS calibration certificate.
In order to maintain the accuracy and reliability of results, we recommend that hydrometers which are used at ambient temperature are calibrated when new, and thereafter every two years. Hydrometers used above or below ambient temperature should be calibrated annually. All our hydrometer calibrations are carried out under our ISO 17025 accreditation, and we issue a UKAS calibration certificate for each hydrometer.
We produce calibrated Glass Floats for use in density gradient columns within the density range 650-2000 kg/m³ (0.65-2.00 g/ml) at 23°C. Each float has a unique identification number and is calibrated under our ISO 17025 accreditation. Floats are supplied with UKAS calibration certificates. We can also calibrate customers’ own floats.
An inaccurate density meter gives the wrong answers. Our ISO 17025 accreditation covers the calibration of density meters from hand-held to online.
The Alcofloat Spirit Test Kit was developed in conjunction with a major pub and restaurant chain and a leading Trading Standards office. The kit is used to detect the ‘watering down’ of spirits. The kit is supplied with a UKAS calibration certificate, so that the results are often admissible in court or in industrial tribunals.
Density Gradient Columns are used extensively in both industry and research to determine the density of solid samples. We have developed a microprocessor-controlled column filler which enables the user to build consistent and accurate columns repeatedly and quickly.
Pressure pyknometers are used to calibrate fiscal crude oil density meters. H&D Fitzgerald design and build pyknometer systems which allow pyknometry measurements to international standards.
With over 35 years of experience to draw upon, the consultants at H&D Fitzgerald are frequently approached to find solutions to problems in the measurement of density.