OELCHECK test instrument: Mettler-Toledo refractive index module RX40/R4, Mettler-Toledo density meter DM40/D4, Mettler-Toledo pH/Ion bench meter SC S220-B
Sample quantity: 25 ml
Unit: % (m/m)
Test result: Refractive index, density, pH.
Calculated from refractive index: urea content
Analysis for: AdBlue
Brief description: The result of the measurement of the refractive index of AdBlue depends on its urea concentration.
Via a mathematical relationship, the content of urea can be calculated from the measured refractive index.
Statement: The determination of the urea content is an essential quality criterion for the release of AdBlue according to ISO 22241-1.
Underlying test standard: ISO 22241-2 Annex C