ASTM D1290 Test Method for Sediment in Water-Emulsion Polishes by Centrifuge
7. Precision and Bias
7.1 Precision - Interlaboratory and intralaboratory duplicate determinations of sediment by this test method should not differ by more than 0.2 mL.

7.2 Bias - This test method has no bias because the results developed are defined in terms of this test method.

8. Keywords
8.1 centrifuge; polishes; sediment; water-emulsions