This table summarises the methods of analysis of middle distillates for contamination by micro-organisms, water and sediment and the limit values not to be exceeded.
These types of contamination are most common during long-term fuel storage.
1 | GAZOLE | FOD | JET A1 | ||
|---|---|---|---|---|---|
2 | Moisture content | Standard | Standard NF EN 12937 Dosing of water Karl Fisher titration method by coulometry | Standard NF EN 12937 Dosing of water Karl Fisher titration method by coulometry | Standard NF EN 12937 Dosing of water Karl Fisher titration method by coulometry |
3 | Value | less than 200 mg/kg | less than 200 mg/kg | value maintained between 1 and 15 ppm thanks to coalescing filters | |
4 | Particulate contamination | Standard | NF EN 12662 Determination of total contamination of middle distillates, gas oils and methyl esters of fatty acids | NF ISO 3734 Determination of water and sediment content in residual fuel oils. Centrifugation method | ASTM D5452 Particulate Contamination in Aviation Fuels by Laboratory Filtration |
5 | Value | Less than 24 mg/kg | Less than 0.10% (m/m) | Maximum: 1,0 mg/l | |
6 | Microbiological analysis | Standard | IP 385 / 99 Enumeration of living micro-organisms in fuels with a boiling point below 390°C. Filtration and culture method | IP 385 / 99 Enumeration of living micro-organisms in fuels with a boiling point below 390°C. Filtration and culture method | IP 385 / 99 Enumeration of living micro-organisms in fuels with a boiling point below 390°C. Filtration and culture method |
7 | Value | No limit value defined | No limit value defined | No limit value defined |