The All-about-pH Blog

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All about pH

The objective of this site is to explain everything you need to know about pH measurement.

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Bad readings

Are ph reading is way off compared to are Controller reading. I found out that the Chemical co. is putting distilled water In are storage solution bottle

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Is this explanation correct?

Regarding The glass pH measuring electrode, the explanation states that H+ do not cross the membrane. Instead, it is asserted that Na+ cross. If so, then

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Great site

This site is really helpful, thanks for posting this. I really like how each topic is linked at the end to another page. I have started working at a water

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pH junction, diameter of diaphram

Hi, Thanks for a great site. I have 2 pH reference junctions, one with a small diameter permeable diaphram and one with an obviously larger diameter

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pH Reference sensor

The function of the reference sensor is crucial to your pH measurement accuracy, learn why:

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pH Reference electrode

So, why do you need a reference electrode? Read more . . .

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The basic concept of acids and bases

When dealing with pH testing you need to have an understanding of the basic concept of acids and bases. Read here . .

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pH Definition

pH definition - or what is pH? Read more . . .

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The pH measurement forum

The pH measurement forum provides opportunities for the informal exchange of opinions, experiences and comments on different aspects of pH testing and measurement.

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History of the pH Meter

The first commercial pH testers were built around 1936 by Arnold Beckman in the United States and by Radiometer in Denmark. However, glass pH electrodes

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pH Electrode

To pick the appropriate pH electrode for your application you need to have a basic understanding of the different parts of an electrode, learn more:

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The pH combination electrode

The combination electrode contains both the reference and the measuring electrode in one housing, learn more:

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pH meter

Learn how a pH meter works; . . .

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pH color chart

Learn how to use pH color chart . . .

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Online pH measurement

Learn more about online pH measurement: . . .

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Search the site

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The pH sensor

Learn how the pH sensor works:

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pH Testing

Consider the following points before you start your pH testing: . . .

Continue reading "pH Testing"

pH calibration

Learn why regular pH calibration is needed to ensure accuracy. . .

Continue reading "pH calibration" - Click Here for ALL Your Office Supply Needs!

Favorite pages:

acids and bases
What is an acid? What is a base? If you want to know, read here!

calculating ph
Do you know what pH stand for? If not, click here!

electrode design
The pH electrode consists of the following parts:
. . read here!
offset error
Real-world pH electrodes are not ideal,
read why.

definition of ph
What is the definition of pH? See the answer. . .

nonglass ph electrode
Is it not possible to use a glass electrode for your application? Use a non-glass pH electrode.

ph measurement
Learn how the temperature affects your pH measurement.

Download the new release ISO 14001:2015