Post Exam Review Ratio Scales “The ratio scale of measurement is the most informative scale. It is an interval scale with the additional property that its zero position indicates the absence of the quantity being measured.” Does the use of mg/l to measure dissolved oxygen in a water sample fit this definition? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Like this:Like Loading...