Table 6. Computed EP Times (t₁ and t₂) from the Nonlinear Regressions Using the eWf and the TC^a.

endpoint time / s
experiment	empirical W-function,teWf	theoretical curve, tTC(t)	Applied Precision, AP	% difference
initial titration
1	179.11	177.71	178.78	–0.78
2	228.47	226.64	230.1	–0.80
3	167.52	165.93	166.99	–0.95
4	160.42	158.01	159.91	–1.50
5	218.86	217.57	218.31	–0.59
6	169.82	166.51	170.04	–1.94
7	252.77	250.09	252.35	–1.06
8	231.09	229.44	230.46	–0.71
9	79.87	77.71	79.24	–2.70
10	101.54	100.14	101.32	–1.37
final titration
1	62.17	61.64	61.89	–0.88
2	62.44	61.28	62.31	–1.86
3	58.51	58.38	58.43	–1.92
4	59.21	58.02	59.18	–2.02
5	59.41	58.43	59.35	–1.65
6	62.74	61.58	62.68	–1.85
7	62.33	61.10	62.26	–1.98
8	61.59	60.57	61.50	–1.66
9	59.83	58.71	59.72	–1.88
10	59.56	58.51	59.44	–1.77

^aThe EP times given by the software of the Applied Precision instrument (AP) are also given as a reference value. The percentage of difference (% difference) is calculated with respect to the value obtained with the eWf as 100*(t_TC(t) – t_eWf)/t_eWf.