Assertion: calcium hydroxide's ph | /r/CapableOf | return to the levels of the other groups
Facets:
value: after 42 days
type: TEMPORAL
Source sentences:
text: They reported that vehicles with glycerine and PEG 400 had a tendency to acidification during the first 8 days (pH 6.85 to 6.4 – PEG 400) but then the pH returned to the levels of the other groups after 42 days (pH 7.1 – PEG 400).