Assertion: hypochlorous acid's ph | /r/HasProperty | kept
Facets:
value: constantly
type: TEMPORAL
Source sentences:
text: They also require the pH to be kept between 7.2 and 7.8 with the chlorine being more effective if the pH is kept closer to 7.2.
text: As described above, the pH can be maintained constantly even if excessive weakly acidic ion exchanger is used in the method of the present invention.