NOTE 5—Precision values were determined from a joint ASTM/IP program conducted in 1972. Six reference fuel blends and ten JetAand Jet B fuels were tested covering a range of smoke points from 15 to 45 mm.
13.3 Bias—The procedure in Test Method D 1322 for measuring the smoke point of kerosines and aviation turbine fuels has no bias because the value of the smoke point can only be defined in terms of a test method.