8. Calculation
8.1 Calculate ash, %, as follows:
where:
A = mass of crucible, cover, and ash,
B = mass of crucible and cover, and
C = mass of crucible, cover, and sample.
9. Precision and Bias
9.1 The reproducibility for engine coolants should be within +/- 20 % of the mean. These precision limits may apply to some types of antirusts.
10. Keywords
10.1 ash; engine coolant