pH Solution & Electrodes
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£11.76 £9.80
- Buffer solution rated to 7.00pH
- Used for calibrating pH meters
- 100ml per bottle
9 Reward PointsPrice Match Guarantee816-051 -
£15.11 £12.5912 Reward PointsPrice Match GuaranteeEX006
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£18.60 £15.5015 Reward PointsPrice Match GuaranteeCL203
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Discontinued
- 2 x test bottles included
- For use with Extech CL500 and TB400
- Direct replacement for bottles included with these meters
BTL10 -
£23.99 £19.9919 Reward PointsPrice Match GuaranteePH4-P
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£25.14 £20.9520 Reward PointsPrice Match GuaranteeEC-12880-P
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£25.14 £20.9520 Reward PointsPrice Match GuaranteeEC-1413-P
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£25.14 £20.9520 Reward PointsPrice Match GuaranteeEC-84-P
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£25.14 £20.9520 Reward PointsPrice Match GuaranteePH7-P
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£30.00 £25.0025 Reward PointsPrice Match GuaranteePH105
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£30.00 £25.0025 Reward PointsPrice Match GuaranteePH10-P
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£33.60 £28.0028 Reward PointsPrice Match GuaranteePH103
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£35.99 £29.9929 Reward PointsPrice Match Guarantee601500
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£38.40 £32.00
- Replacement probe for 8100 Plus pH kit
- Lumberg connector
- 1m lead
32 Reward PointsPrice Match Guarantee170-100 -
£45.11 £37.5937 Reward PointsPrice Match GuaranteeEC405
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£45.23 £37.6937 Reward PointsPrice Match GuaranteeRE305
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£46.80 £39.0039 Reward PointsPrice Match Guarantee60120B
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£47.99 £39.9939 Reward PointsPrice Match GuaranteeEX010
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£51.00 £42.5042 Reward PointsPrice Match Guarantee6015WC
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£52.08 £43.4043 Reward PointsPrice Match GuaranteePH115
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 a 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 solutions, and they are designed to resist sudden changes in pH, making them perfect for calibration purposes. The buffer solution can differ 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.