ASTM D2276 and D5452: Measuring Particulate Contamination in Aviation Fuel

Dirt in aviation fuel blocks filters and causes trouble in fuel systems, so fuel is checked for it from refinery to wing. ASTM D2276 and D5452 measure the mass of particulate matter in a sample of aviation turbine fuel. They are the two sides of one test: D2276 takes the sample in the field from a flowing line, and D5452 works on a sample brought to the laboratory.

ASTM D2276: line sampling in the field

D2276 uses a field monitor fitted to the fuel line. Fuel flows through a pair of membranes in the monitor: a test membrane that collects the particles, and a control membrane beneath it. Afterwards the membranes are dried and weighed, and the difference in mass gives the particulate contamination per unit volume of fuel.

The standard also describes a quicker check by colour: the colour of the membrane after sampling is compared with a rating scale. It does not replace weighing, but it shows changes in contamination level without waiting for laboratory results. Because fuel flowing through filters can build up static charge, the standard includes precautions against static discharge.

ASTM D5452: laboratory filtration

D5452 is the laboratory version. A fuel sample delivered to the laboratory is drawn by vacuum through a test membrane and a control membrane, and the difference in mass between the two gives the contaminant level per unit volume.

What the results are for

Both methods give the total mass of particulates, which is the figure usually of most interest. Their stated aim is to keep contamination low, to avoid filters plugging and other operating problems. The limits themselves come from fuel specifications and fuel handling standards, not from these test methods.

For middle distillate fuels such as diesel, ASTM D6217 does the same job with a smaller sample. ASTM D8194 covers the suitability of the 37 mm monitors and 47 mm filters used in these tests.

Vens filters and D2276 and D5452

Vens fuel filter elements and cartridges can meet particulate requirements measured by ASTM D2276 or D5452, depending on the element and its rating. Housings include stainless steel cartridge filter housings and duplex filters, which allow an element change without stopping the flow. For aviation fuel tanks, see also the floating suction assembly, which draws fuel from near the surface, away from the water and sediment at the bottom.

Tell us the fuel, the flow and the specification your system works to, and we will confirm the element.

More: ASTM D3948 and D7224: water separation of jet fuel, ASTM D7619: particle counts in fuel and ASTM standards for filters.

Find a replacement element in FilterDex, send your specification through the enquiry form, or message us on WhatsApp (+91 73974 98659).

ASTM is a trademark of ASTM International. Vens Hydroluft is not affiliated with ASTM International. The standards are described in our own words from the scopes ASTM publishes; work to the edition named in your specification. Whether a filter meets a requirement depends on the product, its rating and the conditions of use, so we confirm it for each enquiry. See also our product information disclaimer.