Research Report RR:D02-1613
The precision of test method D4684 was determined by the statistical examination of results from an interlaboratory program in which 10 to 11 samples were tested in 7 to 9 laboratories at -25, -30, -35 and -40 degrees C utilizing thermo-electric cooled MRV's.
D4684-20 Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature
Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants
Subcommittee D02.07 on Flow Properties