HM Digitals new Model PH-BUF pH buffer solution variety pack comes in convenient powder form that provides many benefits over liquid, including an indefinite shelf life, lighter weight and smaller size. The pack includes 12 powder packets (three in pH 4.0 packets, six in pH 7.0 packets and three in pH 10.01) and an empty 100 mL bottle for a total volume of 1.2 liters. Simply mix with 100 mL of distilled water and the solution created will last approximately two to four weeks. Accuracy is rated at +/- 0.02 pH at 25C (77F).firstname.lastname@example.org
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