Yep, I've still got my spool from unkamen somewhere. I was so stoked to get it and mine came in the mail about the time everyone in the beyond ni200 thread got it and started reporting problems with it.
Using ZiViPf's now and very happy with it.
New studies find carcinogens in vg and pg at high temps, even in tootle puffers
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Using ZiViPf's now and very happy with it.
Evolv didn't measure any carcinogens. They alluded to the SS chamber varying temp paper to somehow connect the two. That link remains to be directly demonstrated.
Material and methods about measuring aldehyde products in the device independent model:
"Aerosols were collected onto commercial cartridge samplers that contained silica coated with 2, 4-dinitrophenylhydrazine (DNPH) (Sep-Pak XpoSure Aldehyde Sampler, WAT047025, Waters, Inc., USA). The temperature of air leaving the reactor was between 25–76°C, depending on the reactor temperature. Hence there was no concern that a high temperature of leaving air from the reactor would damage the DNPH cartridges. Two DNPH cartridges were connected in series to ensure no cartridge breakthrough."
"Analysis of carbonyl compounds
The DNPH cartridges were extracted with 10 mL of acetonitrile (HPLC grade, Fisher, USA) in a 10-ml volumetric flask, and 1.0 mL of the extract was transferred to an HPLC sample vial. HPLC analysis was performed on an Agilent 1260 HPLC with a UV-DAD detector measured at 360 nm (Agilent Technology, Inc., USA) under isocratic mode. A 200-mm × 3.2-mm C18 column (Restek Allure, USA) was used at 40°C. The mobile phase was acetonitrile/water (65v/35v) with a flow rate at 0.75 mL/min. Carbonyl compounds were identified and quantified according to commercial standards (Sigma-Aldrich, USA). The method detection limits for formaldehyde, acetaldehyde, acrolein, and acetone were 0.007, 0.010, 0.012, and 0.012 μg/mL, respectively."
from this article, A Device-Independent Evaluation of Carbonyl Emissions from Heated Electronic Cigarette Solvents
Shorter version, the actual testing for carbonyl products like formaldehyde and Acrolein were conducted in a previously tested system that works. The findings from the study, however, do not at this point establish that the use of TC will avoid the temperatures reported as necessary to see these breakdown products.
Hence page ~75 on this very topic by now.
To each their own. The post I was replying to said that the Nauti was what he was trying to achieve with his TC settings, and was asking about what to recommend to a newbie to get the same results. My response was basically saying "If it works, don't fix it" There's no real need to recommend excessively complex hardware, when the older, simpler devices would be perfectly effective.
to machine.
Off the spool (NotNiFe 52) it's the most springy of any wire that I tried to coil with, torched it was just fine. It worked pretty good, wonder what it really is.
Yeah setting up profiles for atty's is the way evolv reccommends it but it's a pita, imo it's easier just to set the profiles for wire types than switching materials for the profile on the device
Did you bother to read/watch the videos? they didn't even conduct the study, the only data they had was from ecigstats from users.
Somewhere around what the Invar is listed a few pages back, something like 0.00117 if I remember.
TC VAPE OR DIE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
or just do whatever floats your boat
Either way vaping>Smoking
or just do whatever floats your boat
Either way vaping>Smoking
Vaping has always been about harm reduction. I'll take two possible carcinogens over 20k unknown chemical compounds any day of the week.
Device-independent .. looking at gasoline without the motor.
Yet, the same gasoline gets me very different mileage depending on the make of engine I pour it into...
Device-independent .. that contraption they've built for measuring all that stuff IS a device in itself...
Been shoveling toxic garbage into my system for decades at 2 pad, so Leidenfrost, Brown or whoever else did some learned work on all the physics about liquid turning into vapor still have to get past the fact that I likes it ( vaping) and my meatsack appreciates the drastically reduced intake of garbage (healthier).
All we want is to transfer sufficient energy to a liquid to overcome the surface tension/cohesive forces/whatever to make a foine vape.
Currently it's best achieved with what we've got - heat. Maybe technological advances are going to come up with another way while keeping it portable and affordable.
Meanwhile, I could just pour my nic and my flavours in water and use one of these ugly-a-f-looking medical nebulizers at home. I could also up the water content of my juices ( further harm reduction ) till they barely hold in the atty without leaking all over.
Or I could go on vaping. With all the risks and benefits that come with it.
Just like others like to go biking, hiking, parachuting, or trying close-up pics of a starving gator...
For over 2 years a brother of mine vapes on a Nautilus mini at 11 watts, a classic tootle puffer. I'm always protective of my younger brother and I got him started vaping and feel some responsibility on account of that. The California scientists claim he is in danger because he might be hitting 470 F without knowing it even at his low watts.
In the video below a Pico Mega, running Arctic Fox firmware, is firing a 1.38 ohm coil in an SV rda clone at 11 watts, with NO air draw, continuously for 19 seconds. I don't see a temperature above 300 F. (edit: temperature limit is set at 400 F. If that was hit a "protection" sign would have flashed)
In the video below a Pico Mega, running Arctic Fox firmware, is firing a 1.38 ohm coil in an SV rda clone at 11 watts, with NO air draw, continuously for 19 seconds. I don't see a temperature above 300 F. (edit: temperature limit is set at 400 F. If that was hit a "protection" sign would have flashed)
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