1 In saliva: Nicotine stays in your saliva up to 4 days.  In hair: nicotine can stay in hair for months instead of for days. It is more surprised that many hair tests can detect nicotine for up to a year. However, nicotine is normally found within 1-3 months after you stop smoking.
California Redemption Value, or CRV, is a deposit paid on sales of certain recyclable beverage containers in California.
The units of measurement for that can also be altered to suit. For example. Seeing a bottle (75 cL) of wine with an AbV of 12%, we enter 12 in box 3 and 1 in box 5 select bottle(=75cL) for the units to find that the bottle contains 90 mL of alcohol. Or 71 grams or 2. 5 ounces(avoir) and so on. But there are other uses. It can be used to find the %AbV of a drink (to use in one of the other calculators) if the strength is given in some other way, like grams of alcohol in litres (or mL) of liquid. This information, put into boxes 4 & 5 respectively will give the %AbV (or proof) of the drink. Other uses can no doubt be found.