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
011008100μS/cm conductivity/TDS standard, 5 x 60mL
01100910147μS/cm conductivity standard, 10 pouches
0110071413μS/cm conductivity/TDS standard, 5 x 60mL
011007101413μS/cm conductivity/TDS standard, 10 pouches
01100612.9mS/cm conductivity/TDS standard, 5 x 60mL
0110061012.9mS/cm conductivity/TDS standard, 10 pouches
011005111.9mS/cm conductivity standard, 5 x 60mL
01100510111.9mS/cm conductivity standard, 10 pouches
9901060.1 M KCl conductivity standard, 475mL
011001Conditioning solution for 011050, and 011050MD conductivity cells
1010001Conductivity calibration resistor kit for Orion Star and Orion Star A Series conductivity meters, MiniDIN
013017Replacement flow cell for use with 2-electrode conductivity cell for ultra-pure water (Cat. No. 013016A, 013016D, and 013016MD)
081045Plastic protective probe guard (for 013005MD, 013010MD, 013025MD, 013005A, 013010A013060A)
0900445 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)
065.107.1357768154
166.847.3447998356
268.597.5558228658
370.357.7688468859
472.127.9838709161
573.918.2008949363
675.708.4189189664
777.508.6389439866
879.328.86096810168
981.159.08499210370
1082.989.309101710672
1184.839.535104310873
1286.699.763106811175
1388.569.993109411477
1490.4510.22111911679
1592.3410.46114511981
1694.2410.69117112283
1796.1510.93119812585
1898.0811.16122412787
19100.011.40125113088
20102.011.64127713390
21103.911.88130413692
22105.912.12133113894
23107.912.36135814196
24109.912.61138614498
25111.912.851413147100
26113.913.101441150102
27115.913.351468153104
28117.913.591496156106
29120.013.841524159108
30122.014.091552161110
31124.114.341580164112
32126.214.591608167114
33128.314.851636170117
34130.415.101665173119
35132.515.351693176121
36134.615.611722179123
37136.715.861751182125
38138.916.121780185127
39141.016.371808188129
40143.216.631837191131
41145.416.891866194134
42147.617.151896197136
43149.817.401925200138
44152.017.661954203140
45154.217.921983206142
46156.418.182013209145
47158.718.442042212147
48160.918.702071215149
49163.218.962101219151
50165.419.222130222154

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.

Support

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

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