Assertion: hypochlorous acid's concentration | /r/HasProperty | increased to 3 mg/l
Facets:
value: from 1 mg/l
type: OTHER
Source sentences:
text: To offset the loss of disinfection power of free chlorine in stabilised outdoor pools the minimum concentration of free chlorine must be increased from 1 mg/L to 3 mg/L and the concentration of cyanurate must not exceed 50 mg/L.