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.
In the state of Wisconsin it is illegal to drive a vehicle with a blood alcohol concentration of more than .08 percent. This standard applies to drivers of cars, trucks, and many other kinds of motor vehicles. However, the .08 percentstandard has not always been in effect.