pH Hydrion One Drop Indicator Solution 1.0 to 11.0

The Hydrion concentrated pH indicator solution will give pH readings from pH 1.0 to 11.0. Just add one drop of the indicator solution into 4mL of the sample solution, for an easy to see color. Match the color of the solution with the laminated color chart, for quick and easy pH measurements. The colors will remain stable, so there is no need to worry about having to rush for a reading. An excellent addition for the making of bio-diesel. Includes: * Black polypropylene protective case * One(1) polyethylene dropper bottle, with 25mL of pH indicator solution * One(1) 4mL samle tube, with cap * One(1) laminated color chart