pH Solution & Electrodes (37 Products)

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  1. ETI 816-051 pH Buffer Solution: 7.00 pH All ETI Products
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    ETI 816-051 pH Buffer Solution: 7.00 pH
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    • Buffer solution rated to 7.00pH
    • Used for calibrating pH meters
    • 100ml per bottle
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    SKU: 816-051
  2. extech ex007 spare sample solution cups 24pk All Extech Products
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    Extech EX007 Spare Sample Solution Cups (24pk)
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    SKU: EX007
  3. Extech PH113 Filling Solution Kit for Refillable pH Electrode Module All Extech Products
     
    Extech PH113 Filling Solution Kit for Refillable pH Electrode Module
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    SKU: PH113
  4. Extech EX006 Weighted Base and Solution Cups Kit All Extech Products
     
    Extech EX006 Weighted Base and Solution Cups Kit
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    SKU: EX006
  5. Extech CL203 ExTab Reagent tablets 10pk 100 tests All Extech Products
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    Extech CL203 ExTab Reagent tablets (10pk 100 tests)
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    SKU: CL203
  6. Extech BTL10 Test Bottles for CL500 and TB400 All Extech Products
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    Extech BTL10 Test Bottles for CL500 and TB400
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    • 2 x test bottles included
    • For use with Extech CL500 and TB400
    • Direct replacement for bottles included with these meters
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    SKU: BTL10
  7. extech ph7 p 7ph buffer solution 2 bottles All Extech Products
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    Extech PH7 P 7pH Buffer Solution (2 Bottles)
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  8. extech ph4 p 4ph buffer solution 2 bottles All Extech Products
     
    Extech PH4 P 4pH Buffer Solution (2 Bottles)
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    SKU: PH4-P
  9. Extech PH10 P 10pH Buffer Solution 2 Bottles All Extech Products
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    Extech PH10 P 10pH Buffer Solution (2 Bottles)
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    SKU: PH10-P
  10. extech ec 84 p 84 degrees s conductivity standard 2 bottles All Extech Products
     
    Extech EC 84 P 84 Degrees S Conductivity Standard (2 Bottles)
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    SKU: EC-84-P
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About pH Solution & Electrodes

When using a pH meter it is incredibly important to maintain the device's electrode via the use of buffer solutions. Not doing so will lead to the efficiency of the electrode deteriorating at a much quicker rate, leading to it having to be replaced more often.

It is also common practice to perform pH meter calibration before each testing procedure - this enables the user to check that the electrode is functioning correctly and that the result gained during the real testing procedure will be accurate. Not doing so can be a significant danger, as an incorrect reading taken using an uncalibrated could leave the target substance with high acid/alkali levels that shouldn't be present.

Sample pH solutions are used commonly during these calibration procedures to check that the tester is working correctly. Before this is done the probe of the pH meter should be thoroughly rinsed using special rinse solution, and then it should be immersed into the sample solution, stirring gently to create a homogenous sample. The reading should then be accurate to the solution used and if so, the meter is calibrated correctly.

Sample pH solutions are often referred to as buffer solution, and they are designed to resist sudden changes in pH, making them perfect for calibration purposes. The buffer solution can different in pH, so choosing the right one for your testing needs is important. There are also buffer solutions created for specific pH types, such as chlorine.

It is also good practice to rinse electrodes before testing actual solutions as well - not doing so could lead to contamination and inaccurate readings being taken.

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