| Engelsk substantiv: pH scale | 
| 1. | pH scale (om egenskap) (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic) | 
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 | Ord med samme betydning (synonymer) | pH | 
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 | Mindre spesifikke uttrykk | hydrogen ion concentration | 
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 | Mere spesifikke uttrykk | acidity, alkalinity, neutrality | 
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 | Overordnet kategori | chemical science, chemistry | 
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