Temperature Influence on DuraCal pH Buffer 12.00

A prerequisite for an accurate pH calibration is the availability of suitable buffer solutions. Hamilton 12.00 DuraCal liquid buffer solution (Ref 238279) has an accuracy of +/- 0.05 pH units and a stability of 24 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 12.00 DuraCal buffer

Temp [°C]	pH Value	Temp [°C]	pH Value
5	12.46	30	11.90
6	12.44	31	11.88
7	12.41	32	11.86
8	12.39	33	11.84
9	12.36	34	11.82
10	12.34	35	11.80
11	12.32	36	11.78
12	12.29	37	11.76
13	12.27	38	11.74
14	12.25	39	11.72
15	12.23	40	11.70
16	12.20	41	11.68
17	12.18	42	11.66
18	12.17	43	11.64
19	12.13	44	11.62
20	12.11	45	11.60
21	12.09	46	11.58
22	12.05	47	11.57
23	12.04	48	11.55
24	12.02	49	11.53
25	12.00	50	11.51
26	11.98
27	11.96
28	11.94
29	11.92