Drop Size

[RichardV]

I see drops/ml mentioned very often as 20 per ml.When I calculated mine, PG is 40/ml and flavorings are 38/ml. I calculated this by dropping into a 3ml syringe. Does living at 18 feet above sea level affect this (higher baro. pressure)? Also I drop 38-40 drops of e-liquid into a carto to fill it with no flooding problems.

Thanks for any advice.

 

[Retriever]

Different droppers/bottles produce different size drops. Most calculations I believe are done at sea level so the 18 ft is inconsequential. If you can get 38-40 drops into a carto, then you have small drops or a large carto I would think.

 

[RichardV]

I am using the V2 carto (KR808D-1 battery)

 

[MiamiMom63]

When I started to DIY the whole drop size thing was a mess for me. Like Retriever says, different things have different drop sizes, and none of what I was using equaled the 20 drops per ml, not even my syringe. I ended up getting a flask and now when I DIY I just pour or drop my mixtures into the flask to measure and I don't have the patience for counting drops. It's all relative in the end and one drop isn't going to make a different as far as I'm concerned. I'm just mentioning this in case you start to DIY For me the flask was the way to go and forget the counting....

 

[MiamiMom63]

Oh, and I'm at sea level. LOL.

 

[MiamiMom63]

Oh, and I'm at sea level. LOL.
Well, though when I fill cartomisers, I don't count drops. I just fill it till it looks like a slush. If it drips out the bottom it's okay. Just wipe the batt end clean. It's okay to over fill a cart and let it drip out the bottom.

 

[Cloud Wizard]

Sea level shouldn't matter, it's the dispenser that matters. I did some measures with various stuff and (for me MMV) dropper bottles with thick juice were ~20 drops/ml, bottles with dropper caps ~25drops/ml. I used V2 cartos when I started out (worked great for me) and the rule of thumb became drip 10 drops (taryn spin or wait till soaked in), 5 drops (taryn spin or wait till soaked in), 5 drops (taryn spin or wait till soaked in) then 1-2 drops till top of filler material looked "mushy".
(if overfilled to where the carto "gurgles or leaks out battery end, blow back into to bottle).

There are several exact definitions of a "drop":

the "metric" drop, 1/20 mL (50 μL).
the medical drop, 1/12 mL (83 1/3 μL).
the Imperial drop, 1/36 of a fluidram (1/288 of an Imperial fluid ounce, or 1/1440 of a gill) (approximately 99 μL).
an alternate, possibly apocryphal, definition of the drop is 1/1824 of a gill (approximately 78 μL).
the U.S. drop, 1/60 of a teaspoon or 1/360 of a U.S. fluid ounce (approximately 82 μL).
an alternate definition of the U.S. drop is 1/76 of a teaspoon or 1/456 US fl oz (approximately 65 μL).
According to Webster dictionary, "drop" indicates the smallest volume of a liquid that may be measured. The size of drop may vary with the viscosity of the liquid.