EXPLANATION
This test method is designed to give an indication of the minimum storage and minimum handling temperatures, which may be used for a given fuel oil. This test method is cited in Specification ASTM D396.
TEST SUMMARY
A sample of oil, preheated if necessary to make it fluid, is poured into the cup of the portable viscometer. This is immersed in a bath at a predetermined temperature for 15 min. Then the viscometer is started at the shear rate of 9.7 s(−1). After a further 5 min, the bath is cooled at 0.5° C/min. The temperature at which apparent viscosities of 0.6 Pa. s and 2.5 Pa. s are obtained is determined.
TEST PRECISION
No statement of bias can be made for this test method.