Where'd ya get your info for Wikipedia???

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"Lab experiments utilizing these hand gels have yielded EtG results in the 500-800ng/ml range on multiple occasions in one individual. In another study, however, inhallation of hand sanitizer did not cause a positive EtG test in any of the study participants. Certainly when an individual uses mouthwash or cold medication containing alcohol, this is not "incidental" exposure to alchol, rather intentional use of alcohol. The term "incidental" should be reserved for products that are not normally associated with the consumption of alcohol (e.g., hand sanitizer)."

"Although these cutoffs used to have no scientific foundation in terms of identifying beverage alcohol consumption, current research does support the use of 500 ng/mL. It is highly unlikely that individuals who have incidental consumption or exposure to alcohol (e.g., using mouthwash, cold medication, hand sanitizers, or other household or health products containing alcohol) will produce an EtG level greater than 500 ng/mL because the amount of alcohol in these products would be far less than the amount of alcohol found in one standard drink. Recent studies currently recommend consideration of 250 ng/mL as the cutoff levels for testing and the use of 500 ng/mL as a guideline for intentional consumption of alcohol."