Today, the most countries permissible blood alcohol percentage tester content is 0.35 ppm or 0.16 ml of alcohol per 1 liter of exhaled air, while the standard norm. It is according to the Vienna International Convention on Road Traffic, is 0.8 ppm. Accuracy of research in alcohol percentage testers All alcohol percentage testers can reliably determine whether alcohol … Continue reading What is Alcohol percentage tester? Beginner’s Guide