Here it is: http://www.boxelderchemicalsupply.com/110811pgtest.pdf (The link is from post 278, a message that had been sent out by BE)
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It is the fact that it is an indicator method that gives much of the uncertainty. But yes, titrating more will increase the accuracy somewhat. Regardless, the kit will give, if done properly, a very good indication of nic level, as long as the liquid is not pH-adjusted by the vendor. BE evidently does not, but I know others do. In those situations, there will be a very large error, giving results much lower than actual nic content. So it MUST be a freebase nic liquid for the kit to be at all accurate, and unless the vendor reveals this info, you won't know.
Supplements are not FDA regulated for amounts labeled. We must trust vitamin companies' word.
Those liquids that would not be measured accurately are those with acids added, such as citric acid, ascorbic acid, ... Most likely flavors like lemon, melon etc. Unflavored and tobacco flavored will probably not be acidified.
I'm assuming that Box Elder is doing a recall on those batches to remove the possibility of anybody getting hurt. Right?
Here it is: http://www.boxelderchemicalsupply.com/110811pgtest.pdf (The link is from post 278, a message that had been sent out by BE)
Has anyone tested xtreme vapings mg/ml? I got a bottle of 100mg/ml and think it's ok but just curious.
Levy does his own titration tests. He is a very trusted nic source.
The nic level here is 128 mg (12.8%), not 100 mg. Am I missing something? Or did they just say that their 100 mg could actually be the level I measured for one sample (121 mg)? Anyone?
The nic level here is 128 mg (12.8%), not 100 mg. Am I missing something? Or did they just say that their 100 mg could actually be the level I measured for one sample (121 mg)? Anyone?
The nic level here is 128 mg (12.8%), not 100 mg. Am I missing something? Or did they just say that their 100 mg could actually be the level I measured for one sample (121 mg)? Anyone?
I think he mentioned somewhere that they dilute their nicotine to a little above 100 mg/ml so that they could fine tune it later (because it's harder to add mgs of nicotine than to dilute it out). iirc he said that the highest they had brought into their distribution facility was 14%. Maybe this is a quantitiation from that step?
I would actually be rather skeptical of the accuracy of almost any flavored liquid. I brought this up on VapeTV last night. There are 1000s of flavor notes out there, and of varying acidities. Way too much uncertainty. Many tobacco flavors are compounds similar in functional groups as nicotine, and yes, citruses are acidic. I cannot speak to anything other than unflavored freebase nic liquid for the kit test.
I also took the 12.8% reading as being done on the incoming to their distribution center, too, the stuff they then adjust downwards, final tweak.
The lack of any production lot information makes it a bit of a shrug, wonder how they match paperwork. Does "Lot 256" represent one big container that comes into the distribution center for final downmixing, or does "Lot 256" come in as multiple separate containers, XX gallons each? To me, it would be nice if each container that comes in is sampled, would give a check to see if the mixing that occurred previously had indeed created a more or less homogenous product. (and if it comes in as one really big container, multiple samples would be good).
It is the fact that [the eBay kit] is an indicator method that gives much of the uncertainty. But yes, titrating more will increase the accuracy somewhat. Regardless, the kit will give, if done properly, a very good indication of nic level, as long as the liquid is not pH-adjusted by the vendor. BE evidently does not, but I know others do. In those situations, there will be a very large error, giving results much lower than actual nic content. So it MUST be a freebase nic liquid for the kit to be at all accurate, and unless the vendor reveals this info, you won't know.
(Italics added.)Those liquids that would not be measured accurately are those with acids added, such as citric acid, ascorbic acid, ... Most likely flavors like lemon, melon etc. Unflavored and tobacco flavored will probably not be acidified.