PARTICULATE CONTAMINATION IN AVIATION FUEL: D2276
(Equivalent Test Method: IP 216)
EXPLANATION
See explanation in Test Method D5452. This test method uses a field monitor. Two methods are described. One measures gravimetrically. The other uses a color rating technique for rapid qualitative assessment of changes in contaminant level without the time delay required for gravimetric determinations in the laboratory.
TEST SUMMARY
See Test Summary in Test Method D5452. In the field monitoring test, a sample of fuel is taken from a flowing line or pipe and passed under line pressure through a field monitor containing a 0.8 μm test filter membrane. The color on the filter membrane is compared with the ASTM color standards and assigned a rating letter and number.
TEST PRECISION
Repeatability: 0.175X+0.070
Reproducibility: 0.444X+0.178
Where X is the average value of two results.
This precision is based on the range from 0.0 to 2.0 mg/L.
This test method has no bias.
