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Hamilton offers the 147 µS/cm liquid conductivity standard (Ref 238985), whose stability of ±1% is guaranteed over a lifecycle of up to 18 months. These standards can be used several times, on condition that the bottle is not left open without its lid for more than one hour total. The composition of these standards is patented, and the procedure for determining conductivity has been developed in collaboration with the Danish Institute of Fundamental Metrology (FDM) and the National Institute of Standards and Technology (NIST). Please refer to the calibration certificate packaged with every HAMILTON Conductivity Standard for further details.


Conductivity vs. Temperature: Reference table

Temperature °C
Conductivity µS/cm
Temperature °C
Conductivity µS/cm
Temperature °C
Conductivity µS/cm
5 92 21 136 37 183
6 95 22 138 38 186
7 97 23 141 39 189
8 100 24 144 40 192
9 103 25 147 41 195
10 105 26 150 42 199
11 108 27 153 43 202
12 111 28 156 44 205
13 113 29 159 45 209
14 116 30 162 46 212
15 119 31 165 47 215
16 122 32 167 48 218
17 124 33 171 49 222
18 127 34 174 50 225
19 130 35 176
20 133 36 180