OHAUS ST400, Инструкция по эксплуатации

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EN-24 ST400 & ST400M Portable Meter
6 Appendix
6.1 Table 1 BUFFER GROUP
ST400M automatically corrects for the temperature dependence of the buffer group pH value
given in the following tables.
Buffer group 1 US standard
Temp°C pH1.68 pH4.01 pH7.00 pH10.00
5
1.67 4.01 7.09 10.25
10 1.67 4.00 7.06 10.18
15 1.67 4.00 7.04 10.12
20 1.68 4.00 7.02 10.06
25 1.68 4.01 7.00 10.01
30 1.68 4.01 6.99 9.97
35 1.69 4.02 6.98 9.93
40 1.69 4.03 6.97 9.89
45 1.70 4.05 6.97 9.86
50 1.71 4.06 6.96 9.83
Buffer group 2 Europe standard
Temp°C pH2.00 pH4.01 pH7.00 pH9.21 pH11.00
5
2.02 4.01 7.09 9.45 11.72
10 2.01 4.00 7.06 9.38 11.54
15 2.00 4.00 7.04 9.32 11.36
20 2.00 4.00 7.02 9.26 11.18
25 2.00 4.01 7.00 9.21 11.00
30 1.99 4.01 6.99 9.16 10.82
35 1.99 4.02 6.98 9.11 10.64
40 1.98 4.03 6.97 9.06 10.46
45 1.98 4.04 6.97 9.03 10.28
50 1.98 4.06 6.97 8.99 10.10
Buffer group 3 MERCK (Ref. 20°C)
Temp °C pH 2.00 pH4.00 pH7.00 pH9.00 pH12.00
5 2.01 4.04 7.07 9.16 12.41
10 2.01 4.02 7.05 9.11 12.26
15 2.00 4.01 7.02 9.05 12.10
20 2.00 4.00 7.00 9.00 12.00
25 2.00 4.01 6.98 8.95 11.88
30 2.00 4.01 6.98 8.91 11.72
35 2.00 4.01 6.96 8.88 11.67
40 2.00 4.01 6.95 8.85 11.54
45 2.00 4.01 6.95 8.82 11.44
50 2.00 4.00 6.95 8.79 11.33
Buffer group 4 JJG199 (Ref. 25°C)