HM Digital's ORP buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life. Features
Variety pack of ORP buffer solution.
Test kit to check the quality of your ORP electrode.
Simple to use.
Powder has an indefinite shelf life.Specifications
Total volume: 1.0 liter. Each powder packet makes 100 ml of solution (when mixed with distilled or deionized water)
Contents: 5 packets of +92mV, 5 packets of +265mV
Extras: Includes three empty 100 ml bottles
Accuracy: +/- 0.2 ORP at 25 degrees Celsius
Preparation directions included with the kit