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A prerequisite for an accurate pH calibration is the availability of suitable buffer solutions. Hamilton 6.00 DuraCal liquid buffer solution (Ref 238276) 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 6.00 DuraCal pH buffer

Temp [°C]pH ValueTemp [°C]pH Value
5 6.02 30 6.00
6 6.02 31 6.00
7 6.02 32 6.00
8 6.01 33 6.00
9 6.01 34 6.00
10 6.01 35 6.00
11 6.01 36 6.00
12 6.01 37 6.00
13 6.01 38 6.01
14 6.01 39 6.01
15 6.00 40 6.01
16 6.00 41 6.01
17 6.00 42 6.01
18 6.00 43 6.02
19 6.00 44 6.02
20 6.00 45 6.02
21 6.00 46 6.02
22 6.00 47 6.03
23 6.00 48 6.03
24 6.00 49 6.03
25 6.00 50 6.04
26 6.00
27 6.00
28 6.00
29 6.00