en

pH value

1

Terminological databases

Metroloogia terminibaas

ID 628496 Last modified 08.06.2025
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Domain metrologymeasuring proceduresunits of measurement
  • väärtus, mis viitab vesinikuioonide kontsentratsioonile lahuses ja on lahuse happesuse või leeliselisuse näitarv, kusjuures pH-väärtus pH skaalal varieerub vahemikus 0 kuni 14
  • value that refers to the concentration of the hydrogen ions in a solution, and this is the indicator of a solution's acidity or alkalinity, whereby the pH value on a pH-scale varies from 0 to 14
  • index for the acidic, neutral or alkaline reaction of water
pH-väärtus
Usage examples
  • Mõõtmisel on selgunud, et happeliste lahuste (kõrgema vesiniku (H+) ioonide kontsentratsiooniga lahuste) pH-väärtused on madalamad kui aluselistel või leeliselistel lahustel.
  • Vesi on happeline pH väärtustel < 7, neutraalne pH väärtusel = 7 ja aluseline pH väärtustel > 7.
pH value
Usage examples
  • Acidic solutions (solutions with higher concentrations of hydrogen (H+) ions) are measured to have lower pH values than basic or alkaline solutions.
  • Water is acidic at pH values < 7, neutral at a pH value = 7, and alkaline at pH values > 7.

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