
Transmitter M400 129
© 02 / 2010 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400
Printed in Switzerland 52 121 378
19.5 Hach buffers
Buffer values up to 60 °C as specified by Bergmann & Beving Process AB.
Temp (°C) pH of buffer solutions
0 4.00 7.14 10.30
5 4.00 7.10 10.23
10 4.00 7.04 10.11
15 4.00 7.04 10.11
20 4.00 7.02 10.05
25 4.01 7.00 10.00
30 4.01 6.99 9.96
35 4.02 6.98 9.92
40 4.03 6.98 9.88
45 4.05 6.98 9.85
50 4.06 6.98 9.82
55 4.07 6.98 9.79
60 4.09 6.99 9.76
65 4.09* 6.99* 9.76*
70 4.09* 6.99* 9.76*
75 4.09* 6.99* 9.76*
80 4.09* 6.99* 9.76*
85 4.09* 6.99* 9.76*
90 4.09* 6.99* 9.76*
95 4.09* 6.99* 9.76*
* Values complemented
19.6 Ciba (94) buffers
Temp (°C) pH of buffer solutions
0 2.04 4.00 7.10 10.30
5 2.09 4.02 7.08 10.21
10 2.07 4.00 7.05 10.14
15 2.08 4.00 7.02 10.06
20 2.09 4.01 6.98 9.99
25 2.08 4.02 6.98 9.95
30 2.06 4.00 6.96 9.89
35 2.06 4.01 6.95 9.85
40 2.07 4.02 6.94 9.81
45 2.06 4.03 6.93 9.77
50 2.06 4.04 6.93 9.73
55 2.05 4.05 6.91 9.68
60 2.08 4.10 6.93 9.66
65 2.07* 4.10* 6.92* 9.61*
70 2.07 4.11 6.92 9.57
75 2.04* 4.13* 6.92* 9.54*
80 2.02 4.15 6.93 9.52
85 2.03* 4.17* 6.95* 9.47*
90 2.04 4.20 6.97 9.43
95 2.05* 4.22* 6.99* 9.38*
* Extrapolated
Comentários a estes Manuais