PH CONFORMANCE

Rinse each test tube with the water sample. Gloves should be worn to avoid skin contact with the water, Fill the tube to the 5mL line with sample water, While holding a dropper bottle vertically, add 10 drops of Wide Range Indicator Solution, Cap and invert several times to mix, Insert the tube into the Wide Range pH Comparator. Hold the comparator up to a light source. Match the sample color to a color standard.