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A prerequisite for an accurate pH calibration is the availability of suitable buffer solutions. Hamilton 3.06 DuraCal liquid buffer solution (Ref 238274) has an accuracy of +/- 0.02 pH units and a stability of 60 months. The pH value of the buffer is affected by changing temperature. The effects of temperature from 5 to 50°C is shown below in 1 degree increments.

pH vs. Temperature: Reference table for 3.06 DuraCal pH buffer

Temp [°C]pH ValueTemp [°C]pH Value
5 3.12 30 3.05
6 3.12 31 3.05
7 3.11 32 3.05
8 3.11 33 3.05
9 3.11 34 3.04
10 3.10 35 3.04
11 3.10 36 3.04
12 3.10 37 3.04
13 3.09 38 3.04
14 3.09 39 3.04
15 3.09 40 3.04
16 3.08 41 3.04
17 3.08 42 3.04
18 3.08 43 3.04
19 3.08 44 3.04
20 3.07 45 3.04
21 3.07 46 3.04
22 3.07 47 3.04
23 3.07 48 3.04
24 3.06 49 3.04
25 3.06 50 3.04
26 3.06
27 3.06
28 3.05
29 3.05