Electrochemistry analysis with conductivity standards and solutions

Perform electrochemistry analysis with our conductivity standards and solutions

Choose from a complete selection of conductivity accessories including conductivity standards and TDS (total dissolved solids) standards. All conductivity standards are traceable to NIST™ standard reference materials.

Orion Conductivity Standards and Accessories

Our conductivity standards ensure maximum repeatability and accuracy in your conductivity readings. Pouch or bottled packaging ensures that your measurements deliver the results you need, whether you are in the field or in the lab.

Pair your standards with the right accessories for optimal conductivity measurement. Accessories include conditioning solutions, electrode holders, replacement flow cells, and more.

Cat. No. Description
011008 100μS/cm conductivity/TDS standard, 5 x 60mL
01100910 147μS/cm conductivity standard, 10 pouches
011007 1413μS/cm conductivity/TDS standard, 5 x 60mL
01100710 1413μS/cm conductivity/TDS standard, 10 pouches
011006 12.9mS/cm conductivity/TDS standard, 5 x 60mL
01100610 12.9mS/cm conductivity/TDS standard, 10 pouches
011005 111.9mS/cm conductivity standard, 5 x 60mL
01100510 111.9mS/cm conductivity standard, 10 pouches
990106 0.1 M KCl conductivity standard, 475mL
011001 Conditioning solution for 011050, and 011050MD conductivity cells
1010001 Conductivity calibration resistor kit for Orion Star and Orion Star A Series conductivity meters, MiniDIN
013017 Replacement flow cell for use with 2-electrode conductivity cell for ultra-pure water (Cat. No. 013016A, 013016D, and 013016MD)
081045 Plastic protective probe guard (for 013005MD, 013010MD, 013025MD, 013005A, 013010A013060A)
090044 5 electrode holder (4 X 12mm and 1 X 15mm) to be used with 090043 electrode swing arm and 15mm conductivity cells
Suitable for ultrapure water measurements, our low-level conductivity standards will help you meet your accuracy requirements Our low-level conductivity standards hold their value due to our high quality bottle material that is used. This material mitigates and losses or atmospheric contamination, while others can be affected. For USP <645> cell constant verification and other critical pure water applications, our standards are the ideal choice

Total Dissolved Solids Measurements

The standard method of determining TDS (total dissolved solids) is by evaporating the sample to dryness at 180°C and weighing the residue. Conductivity can be used to estimate TDS. This is done by calculating what concentration of sodium chloride would have the same conductivity as the sample at the same temperature. Thermo Scientific Orion conductivity meters report a sample’s TDS value in mg/L of sodium chloride by comparing the conductivity and temperature of the sample to data stored in the meter’s memory. The stored data was obtained from the International Critical Tables. For temperature values between 5 and 70°C, and TDS values between 0 and 19,999mg/L, the displayed TDS value agrees with the International Critical Tables values with an accuracy of 0.87% RSD.

Conductivity vs. Temperature

 

milli-Siemens/cm

micro-Siemens/cm

Temperature
(°C)
111.9mS/cm Conductivity Standard (mS/cm) 12.9mS/cm Conductivity Standard (mS/cm) 1413µS/cm Conductivity Standard (µS/cm) 147µS/cm Conductivity Standard (µS/cm) 100µS/cm Conductivity Standard (µS/cm)
0 65.10 7.135 776 81 54
1 66.84 7.344 799 83 56
2 68.59 7.555 822 86 58
3 70.35 7.768 846 88 59
4 72.12 7.983 870 91 61
5 73.91 8.200 894 93 63
6 75.70 8.418 918 96 64
7 77.50 8.638 943 98 66
8 79.32 8.860 968 101 68
9 81.15 9.084 992 103 70
10 82.98 9.309 1017 106 72
11 84.83 9.535 1043 108 73
12 86.69 9.763 1068 111 75
13 88.56 9.993 1094 114 77
14 90.45 10.22 1119 116 79
15 92.34 10.46 1145 119 81
16 94.24 10.69 1171 122 83
17 96.15 10.93 1198 125 85
18 98.08 11.16 1224 127 87
19 100.0 11.40 1251 130 88
20 102.0 11.64 1277 133 90
21 103.9 11.88 1304 136 92
22 105.9 12.12 1331 138 94
23 107.9 12.36 1358 141 96
24 109.9 12.61 1386 144 98
25 111.9 12.85 1413 147 100
26 113.9 13.10 1441 150 102
27 115.9 13.35 1468 153 104
28 117.9 13.59 1496 156 106
29 120.0 13.84 1524 159 108
30 122.0 14.09 1552 161 110
31 124.1 14.34 1580 164 112
32 126.2 14.59 1608 167 114
33 128.3 14.85 1636 170 117
34 130.4 15.10 1665 173 119
35 132.5 15.35 1693 176 121
36 134.6 15.61 1722 179 123
37 136.7 15.86 1751 182 125
38 138.9 16.12 1780 185 127
39 141.0 16.37 1808 188 129
40 143.2 16.63 1837 191 131
41 145.4 16.89 1866 194 134
42 147.6 17.15 1896 197 136
43 149.8 17.40 1925 200 138
44 152.0 17.66 1954 203 140
45 154.2 17.92 1983 206 142
46 156.4 18.18 2013 209 145
47 158.7 18.44 2042 212 147
48 160.9 18.70 2071 215 149
49 163.2 18.96 2101 219 151
50 165.4 19.22 2130 222 154

Conductivity
Benchtop
Meters

benchtop conductivity measurement

The accuracy and reliability of your conductivity measurements depends on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications, and budget.

Conductivity
Portable
Meters

portable conductivity measurement

Our portable meters are rugged and waterproof, and provide dependable performance in the field without sacrificing accuracy and reliability.

Conductivity
Probes


conductivity electrodes and probes

Our conductivity probes feature built-in temperature compensation; high-, standard-, and low-conductivity measuring ranges; cell constants from 0.1 to 10cm-1, and a variety of probe materials.

What are the top mistakes when measuring conductivity in liquids?

Although conductivity measurements are generally simple and easy to take, mistakes can still affect the validity of the data generated. Download this informative Smart Note to learn more.

Download

Resources
Support

Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.

Orion Meters Software and Upgrades
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