how are the nicotine levels calculated?

[Buxton74]

I am sorry and apologise if I came across wrong. My intention was not to question nor debate the nicotine rating system for e-fluids. I also appreciate that this issue has been discussed a long time before I arrived (yesterday!).

I merely wanted to point out that there has been some serious scientific research done on the subject, and thought that people may be interested in the results - especially analogue-replacers like myself.

 

[Ricardos]

I think the milligrams are counted for every mL, so if it's 18mg, it actually means 18mg per 1ml.

 

[zoiDman]

I am sorry and apologise if I came across wrong. My intention was not to question nor debate the nicotine rating system for e-fluids. I also appreciate that this issue has been discussed a long time before I arrived (yesterday!).

I merely wanted to point out that there has been some serious scientific research done on the subject, and thought that people may be interested in the results - especially analogue-replacers like myself.

No worries. I didn't think you came across wrong.

 

[Yves]

Can anyone who has used the Krystal from eco pure tell me what the mg is for this? I ordered a bottle awhile back that was supposed to be 36mg but they sent me one of these which I haven't used as I am not sure what the mg is? 15 mg or 45mg?
The bottle I have says nothing about mg it just says 4.5% on it.

Krystal ~ 15mg(new) = 4.5%

 

[Yves]

Just to clarify my last post I ordered a 10ml bottle of 36mg from eco pure and they sent me a bottle that says it is 4.5% nothing else written on it. They said they don't make 36mg any more and they didn't want me to wait for my order....so sent me this as a replacement.

 

[Buxton74]

I believe their new strength rating system has been put in place after the results of research and blood plasma trials. Unfortunately, I never ordered from them previous to the new system of strength ratings. However, I believe that 4.5% (which is the fluid I use to replace my analogues - very successfully may I add) is, by the usual e-fluid strength rating system, 45mg. However, their research suggests that the nicotine absorbed is similar to that of a strong and/or unfiltered cigarette (15mg analogue).

If you are vaping for the pleasure of it, it is probably going to be too strong for you. If you are vaping to replace smoking then I can't recommend it highly enough. With "high-strength" 18mg (by the traditional strength ratings) I tend to chain-vape (I was never a chain smoker). However, with the ECOpure strong stuff, 6 or 7 draws will satisfy my cravings for about an hour - just like actual analogue cigs did for me.

Hope this helps.

EDIT: They also claim that because users of higher strength fluids use less, less often, the overall nicotine absorbed throughout the day is actually decreased when compared to users of weaker fluids. And for me, using less = better economy = longer battery use = winning! But that's just me. Many people just vape for the pleasure of it, i'm 99% sure that this fluid would not appeal to them.

 

[Yves]

Ah thank you that helps. I got it to DIY when waiting for a nic juice delivery 45mg is way to high for me I can cut it down for my use now I am only on 12mg now

It was their 15mg/4.5% that got me confused...I understand now

 

[MickeyRat]

>>> we discussed maybe its like the % in a alcoholic beverage how every amount you pour has lets say 5% alcohol if that's the %age on the bottle.

Yep ... 12 mg is 12mg/ml .. which is 1.2% (12/1000)

Ummm that's not quite right. It's not 12 over 1000 though that does get to a close answer. The density of nicotine is 1010 mg/ml. The actual formula for percent by volume is:

(12 / 1010) * 100 = 1.188%

For many purposes, just moving the decimal point one digit to the left will get you close enough to percent. However, if you're calculating for DIY, it does make a difference.

 

[zoiDman]

Ummm that's not quite right. It's not 12 over 1000 though that does get to a close answer. The density of nicotine is 1010 mg/ml. The actual formula for percent by volume is:

(12 / 1010) * 100 = 1.188%

For many purposes, just moving the decimal point one digit to the left will get you close enough to percent. However, if you're calculating for DIY, it does make a difference.

You are correct.

I believe the Density of Nicotine is 1.01 grams per Cubic Centimeters. So yes, in the 12mg Example, the True value is 1.1881%

So if a person used 1.2% instead of 1.1181% they would be off by .0119% for any given amount in a given DIY Mix.

But of course, this is Based on the Belief that their Nicotine Base was Exactly what it is Supposed to be Percentage wise and that a person’s measuring Equipment is very, Very Good.

I don’t worry too much about the .0119% Relative Error in my DIY Mixes.

One, because I can’t tell the difference between 12mg and 12.3mg e-liquids. And Second because my Graduated Cylinders aren’t Accurate enough to measure below +/- .1 ml.

That and I can’t confirm that the 50mg Nicotine Base I buy is Actually 50mg. Or should I say, 4.9505% Nicotine per Volume at Sea Level/72F.

 

[MickeyRat]

You are correct.

I believe the Density of Nicotine is 1.01 grams per Cubic Centimeters. So yes, in the 12mg Example, the True value is 1.1881%

So if a person used 1.2% instead of 1.1181% they would be off by .0119% for any given amount in a given DIY Mix.

But of course, this is Based on the Belief that their Nicotine Base was Exactly what it is Supposed to be Percentage wise and that a person’s measuring Equipment is very, Very Good.

I don’t worry too much about the .0119% Relative Error in my DIY Mixes.

One, because I can’t tell the difference between 12mg and 12.3mg e-liquids. And Second because my Graduated Cylinders aren’t Accurate enough to measure below +/- .1 ml.

That and I can’t confirm that the 50mg Nicotine Base I buy is Actually 50mg. Or should I say, 4.9505% Nicotine per Volume at Sea Level/72F.

Where it'll throw you off is when you are trying to mix juices of different strengths to make a juice of a third strength. Besides, nothing wrong with being accurate when you're dealing with a substance as toxic as nicotine can be.

 

[zoiDman]

Where it'll throw you off is when you are trying to mix juices of different strengths to make a juice of a third strength. Besides, nothing wrong with being accurate when you're dealing with a substance as toxic as nicotine can be.

Absolutely...

If you can do things Accurately, it's easy to Slack off and do things "Quick and Dirty" when Accuracy isn't needed. But if you're used to Slacking, sometimes it is hard to do things Accurately.

For the many people, a .0119% level of Accuracy in DIY is Meaningless. But knowing How to do it is with Precision is Very Valuable.