ASTM D4283 standard test method for viscosity of silicone fluids
7. Procedure
7.1 Follow manufacturer's directions for using their viscometers.
8. Calculation
8.1 Calculate the viscosity of silicone fluids as follows:
Efflux Time (s) x Viscometer Constant (F) = Viscosity (cSt)
9. Precision and Bias
9.1 Precision - Duplicate results by the same operator shall not be considered suspect unless the differ by more than 65 %.
9.2 Bias - This test has no bias because the values produced are defined only in terms of this test method.
10. Keywords
10.1 Ostwald viscometer; polish; silicone fluids; silicone oil; viscosity
