Application RapidOxy: Repeatability of Test Results
The repeatability of test results for sunflower oil was tested.
Alternative to Traditional Stability Test Methods
The rapid small scale tester, RapidOxy, is a fast, safe and user-friendly alternative to traditional stability test methods. The instrument measures the induction period, which can be used as an indication of the oxidation and storage stability. Compared to other oxidation and storage stability test methods, the RapidOxy procedure requires only a small sample to give exact test results in a short period of time.
The goal for this measurement was to test the repeatability of test results at 140 °C and 110 °C.
The sample was a commercially available sunflower oil (Kunella, best before date: 01/10/2016).
5 mL of the sunflower oil were directly filled into the RapidOxy and tested with the standard program B0-B100 at a test temperature of 140 °C and 700 kPa filling pressure and in a user-defined program at a test temperature of 110 °C and 700 kPa filling pressure until a pressure drop of 10 % below maximum pressure (pmax) occurred.
107296 O-ring set, Viton®, pack of 100
107138 Cleaning tissues, 150 sheets
107137 Pipettes, 5 mL, pack of 100
|Date of test||Result at 140 °C |
|Date of test||Result at 110 °C |
Tab. 1: Results for sunflower oil in minutes
The test results show a very good repeatability for both temperatures 110 °C and 140 °C.
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