Tests of motor gasolines according to STN EN 228
| Property |
|---|
| Octane number using the research method |
| Octane number using the engine method |
| Lead content |
| Density at 15 °C |
| Sulfur content |
| Oxidizing stability (inductive period) |
| Content of resin compounds (after flushing) |
| Corrosion on a copper plate (3 h at 50 °C) |
| Appearance |
| Hydrocarbon groups content |
| - aromates |
| - olefins |
| Benzene content |
| Oxygen content |
| Organic oxygenates content |
| - methanol |
| - ethanol |
| - isopropyl alcohol |
| - isobutyl alcohol |
| - tert-isobutyl alcohol |
| - ethers (5 or more carbon atoms) |
| - other oxygenates |
| Vapor pressure |
| Distillation test |
Supplementary/Recommended methods for determination of properties of motor gasolines and gasoline fractions
| Property |
|---|
| Organic oxygenates content: |
| - methanol |
| - MTBE |
| - ETBE |
| - Other ethers (5 or more carbon atoms) |
| Determination of hydrocarbon groups of gasolines and similar mixtures using the multidimensional GC |
| (n-alcanes, iso-alcanes, cyclanes, olefins, cycloolefins, aromates, oxygenates) |
| Anti-corrosion properties |
| Interaction of fuel with water (demulsifying test) |
| Potassium content |
| Alkaline elements content |
| Determination of aromates C6 to C10 |
| Mercaptan sulfur and hydrogen sulphide sulfur |
| Motor gasolines and gasoline fractions using GC method |
| Lubricity (wed1,4) at 25 °C |
| Evaporation residue |
| Content of resin compounds (non-flashed) |
| Doctor test |
| MTBE analysis using the gas chromatography (GC) |
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