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Table 2 Working conditions of the conductometric titrations represented in Fig. 4

From: Conductometric titration as a technique to determine variation in conductivity in perfluorosulfonic acid materials for fuel cells and electrolyzers

Figure 4 a b
Membrane mass (g) 0.2079 0.2059
NaOH concentration (M) 0.1784 0.1807
Temperature (°C) 17.6 ± 0.1 19.0 ± 0.1
Agitation system Magnetic Nitrogen bubbles
Time between determinations (min) 45 30
Total acid capacity (meq/g) 1.14 1.07
Absolute error (%) 0.16 0.09