[Collimetry of waters and nitrate content].
D001432:Bacteriology; D004926:Escherichia coli; D009566:Nitrates / Q000032:analysis*; D009589:Nitrogen Oxides; D014867:Water; D014881:Water Supply / Q000382:microbiology*
D009566:Nitrates; D009589:Nitrogen Oxides; D014867:Water
ESCHERICHIA COLI; NITRATES/determination; WATER SUPPLY/bacteriology
Colimetria delle acque e contenuto in nitrati.