The strip of alcohol in saliva: fast and highly sensitive method to detect the presence of alcohol in saliva. Provides an approximation of the relative concentration of blood alcohol (BAC) at 0.02% or higher. The strip of saliva alcohol test is a chemical analysis based on an alcohol-sensitive enzymatic reaction. Alcohol, if present in the saliva sample, reacts with chemicals in the test pad and cause a color change. The test strip of alcohol in saliva is a plastic strip with an absorption pad attached to the extremity. In contact with solutions of alcohol, the pad will quickly change color depending on the concentration of alcohol present. This color change is proportional to the concentration of alcohol in the saliva sample. Comparing with the color blocks printed on the bag, you can determine an approximate concentration of alcohol in blood. IMPORTANT NOTE: Since transportation costs can exceed the value of some products, assess the possibility, if you plan to make more purchases in the near future to include them all in the same order. Your pocket will thank you.