Best Answer: Generally speaking 15 - 20 drops = 1 mL. So, about 4 to 5 drops should approximate 0.25 mL. However, this is only a guesstimate since there are many factors that contribute to this, including: viscosity of the liquid, dropper size, etc... To measure 0.25 mL more accurately, I would suggest drawing up the liquid into an oral syringe.
What is the legal limit for alcohol and driving? Every state in the US sets the legal limit for blood alcohol content, or BAC, at .08%. This means that if your blood alcohol level is above .08%, you can be arrested in any state in the United States and charged with DUI.
Minnesota maintains some of the strictest drunk driving laws in the country. Rather that DUI, charges for drunk driving are referred to as DWI, or driving while impaired, and include alcohol and drugs. The legal limit in Minnesota DWI laws is .08 BAC with .04 and .02 allowed for commercial driver's license holders and drivers under the age of 21, respectively. Minnesota DWI laws include implied consent for alcohol tests, and refusal can correlate with stiff penalties including automatic license suspension.