Quantifying Repeatability Reproducibility Sources of Error and Capacity of a Measurement: Demonstrated Using Laboratory Soil Plasticity Tests

Table 3

Summary of the standard deviation of the liquid limit test results determined using the two tests.

Bentonite content (%)	Standard deviation (%)
	Casagrande cup	Fall cone
0	0.24	0.21
3	0.28	0.38
6	0.57	0.4
9	1.67	0.67
12	2.93	0.92