Drinking Water Ph Testing For 1St Grade Science. It is important to ensure that we all have good clean water to drink that is not contaminated by heavy metals or chemicals. One common pollutant in a water supply is lead in.
One of the most important indicators of water quality test is its ph. More….>>> ph of water definitions and explanation the ph or hydrogen ion. Free chlorine 0.0, 0.5, 1.0, 2.0, 4.0, 10.0.