Autogas Fuel Quality Standard
The information contained in the following pages is of a general nature only and should be read in conjunction with the Fuel Quality Standards Act 2000, the Fuel Quality Standards Regulations 2001 and the Fuel Standard (Autogas) Determination 2003. Fuel suppliers may wish to seek legal advice about their obligations under this legislation.
Summary table
The Autogas standard is detailed in the following table. The legal instruments implementing the standards are:
| Parameter | Standard | Test Method | Date of effect |
|---|---|---|---|
| Motor octane number (MON) | 90.5 min | Composition by ISO 7941 Calculation by EN 589 Annex B | 1 March 2004 |
| Vapour pressure (gauge) at 40oC | 800 kPa min 1530 kPa max | ISO 8973 | 1 March 2004 |
| Volatile residue (C5s and higher) | 2.0 max mol % | ISO 7941 | 1 March 2004 |
| Residue on evaporation | 100 mg/kg | JLPGA-S-03 by mass method at 105°C | 1 March 2004 |
| Corrosion, copper strip | Class 1 | EN ISO 6251 | 1 March 2004 |
| Hydrogen sulfide | Negative | EN ISO 8819 | 1 March 2004 |
| Sulfur (after stenching) | 100 mg/kg | ASTM D2784 | 1 March 2004 |
| Dienes | 0.3 mol % max | ISO 7941 | 1 March 2004 |
| Moisture content | No free water at 0°C | EN 589 | 1 March 2004 |
| Odour | 20% lower flammability limit (LFL) | EN 589 Annex A | 1 March 2004 |