Accuvin Free SO2 Test Kit

The Free SO2 Kit includes 2 High Range Tests (red caps) and 8 Low Range Tests (green caps), 10 samplers, and an insert with complete how-to-run instructions. The insert also includes a Summary Interpretation explaining how to use the test results. The label with the color chart is on the front of the kit.The sulfur dioxide present in must and wine is not all useful as a preservative. Some is bound to other chemical components, reducing its effectiveness as a preservative by 30 - 70%. Also, the degree of binding can change over time, affecting the ability of an adequate dose to continue providing its preservative properties. The effectiveness of sulfur dioxide as a preservative is also pH-dependent, with low pH wines requiring lower levels, and high pH wines requiring significantly greater concentrations to achieve the same effectiveness as in a typical wine with a pH of 3.3 - 3.4. The Accuvin Free SO2 Kit is divided into a Low Range (0 - 40 ppm) and a High Range (40 - 130 ppm).

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