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Traditionally Pfund colour units have been derived using subjective

visual assessment in a Pfund Honey Colorimeter or against glass

standards. This can lead to differences in reported values between

users. A more objective approach is to use an instrumental method

based on a photometric measurement.

The Lovibond® Honey ColorPod combines simplicity with accuracy for

the measurement of colour in the honey industry. The instrument is

compact and portable allowing for measurements to be made in-situ,

rather than having to carry samples back to the laboratory.

The measurement is performed using two single wavelength LEDs at

right angles to each other. Light at 430 nm and 530 nm is passed

through the sample being analysed. The transmitted light is then related

to the Pfund colour scale or to the seven USDA Honey classifications.

The LED will last the lifetime of the instrument. Samples are measured

in 10 mm path length plastic cuvettes, with four clear sides, that are

inserted into the spill proof sample chamber. The measurements take

only three seconds to perform, with results output in mm Pfund honey

To ensure the robustness of the instrument, the casing is splash

proof with a chemical resistant keypad fitted. To maintain battery

life the instrument powers itself down if it has not been used for

five minutes.