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A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH. The pH meter measures the difference in electrical potential between a pH electrode and a reference electrode, and so the pH meter is sometimes referred to as a "potentiometric pH meter". The…
History, Applications, Measurement & Standards
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ph electrode glass meter meters electrodes solution reference measurement potential use used calibration typically test difference probes solutions voltmeter applications
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| PH meter | is a | scientific instrument that measures the hydrogen-ion activity in water-based solutions | 0.90 | text |
| blood chemistry | instance of | healthcare and clinical applications | 0.80 | text |
| PH meter | has application | The | 0.60 | section |
| PH meter | has application | Knowledge | 0.60 | section |
| PH meter | has application | Advances | 0.60 | section |
| PH meter | has application | In | 0.60 | section |
| PH meter | has application | These | 0.60 | section |
| PH meter | related to Building a pH meter | Specialized | 0.60 | section |
| PH meter | related to Building a pH meter | However | 0.60 | section |
| PH meter | related to Calibration and operation | The German Institute | 0.60 | section |
| PH meter | related to Calibration and operation | Standardization | 0.60 | section |
| PH meter | related to Calibration and operation | DIN | 0.60 | section |
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