TYPES OF WATER (Cont) Fresh Water (precisely less than 0.5%) Fresh Water (precisely less than 0.5%) Fresh water may come from either a surface or ground source, and typically contains less than 1% sodium chloride.
{"Image DocumentName": "TYPES OF WATER (Cont) Fresh Water (precisely less than 0.5%)", "Image ImageDescription": "Fresh water may come from either a surface or ground source, and typically contains less than 1% sodium chloride. It may be either hard or soft, i.e., either rich in calcium and magnesium salts and thus possibly forming insoluble curds with ordinary soap. Actually, there are gradations of hardness, which can be estimated from the Langelier or Ryznar indexes or accurately determined by titration with standardized chelating agent solutions such as versenates.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}