That's why we are trying to come up with a way to avoid the grad cyl entirely. Its simply not needed if you use accurate syringes, and keep tabs on volumes. I see now where you are coming from with the mass thing. Its not a bad idea! Try it!
Houston, we have a problem...BE nic titration results
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That's why we are trying to come up with a way to avoid the grad cyl entirely. Its simply not needed if you use accurate syringes, and keep tabs on volumes. I see now where you are coming from with the mass thing. Its not a bad idea! Try it!
Pretty sure you want to try for the density of all 3 liquids, not just the acid, so the 1 & 2 ml parts are accurate, too, but I could be wrong.
100 gram 0.01g resolution scales are pretty cheap, and there is a nice little 30g 0.001 resolution one, on ebay. They are used for jewelry apparently.
100 gram 0.01g resolution scales are pretty cheap, and there is a nice little 30g 0.001 resolution one, on ebay. They are used for jewelry apparently.
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I have a bottle of Lot 256, but it is labeled as 48mg PG. Looking at the table above, I see that the lot 256 sample tested was labeled as 100mg PG. Other than the obvious concern of the validity of BE's quality control of the product dilution and the labeling of the product, have any samples of the PG based 48mg dilution been submitted for testing yet? Are any particular production or bottling dates being viewed as suspect? With other products that have been recalled, lots and dates are usually linked. (usually due to some breakdown in protocol or procedure)
Thanks for providing your expertise in this issue to the ECF community Kurt!
I have a LOT of samples coming soon, I think. Don't recall the details of PG or VG, but that's why I am having people label the bottles as I am asking.
The CAS#, again, is not relevant. It simply means "nicotine". Some BE bottles may not have lot#s. Editing that repost of levels again to include dates I have right now. Yes, that is important too, thanks, Kin.
Not to change the subject, but it seems that concerned vendors are starting to send out e-mails to their customers and some of their conversation goes to juice vendors with only a web site and a kitchen table, basically having no quality controls, no chemistry knowledge, and etc. They also mention nic base deviations. I will not be posting the e-mails here, surely others on ECF are getting them.
I have edited that recent listing again to include the purchase dates I have. PMing the one that I don't...
Kurt, Classy offered to edit the OP, just in case you missed her post.
http://www.e-cigarette-forum.com/fo...lem-nic-titration-results-90.html#post4596947
My PG 48mg lot 256
Purchased on 8/22 and expires 7/5/12
I decided to keep mine and just halve the nic in my future batches. Mine is stronger than normal, but definitely not rediculously high (hello 270something).
Purchased on 8/22 and expires 7/5/12
I decided to keep mine and just halve the nic in my future batches. Mine is stronger than normal, but definitely not rediculously high (hello 270something).
I ordered one of the small jewelry scales, to try fernand's suggestion. Very low cost, dw will use it if I don't.
That ought to reduce errors in the eyeball part of measurements.
That ought to reduce errors in the eyeball part of measurements.
That would be great! I've included dates too...still getting one.
and lotions apparently
Got my MXT100 MAX:100g d=e=0.01g for about $32 shipped from lotioncrafters but it seems they only have the 500g capacity one now. About $8 more on Amazon - Amazon.com: My Weigh MXT-100 Digital Mini Pocket Scale - SCMXT100: Office Products
wow, there are a bunch for under $20... no idea if they meet the .01g claimed accuracy
http://www.amazon.com/s/ref=nb_sb_n...office-products&field-keywords=gram+scale+.01
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Just let me know when you are ready Kurt
edit: going to go ahead and move what you have now and the last date can be added when you receive it.
edit: going to go ahead and move what you have now and the last date can be added when you receive it.
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Thanks, Classy!
Tell me, is there a way to list PMs sent? I need to find some recent ones, and I can't figure it out. Thanks!
Try <notifications> at the top.
Then click on Inbox
Then click on Sent Items in the box in the upper left corner
The above is correct if you have selected the option to save a copy of sent messages.
Gotcha. Well I guess that will work for future PMs sent, but not already sent. Thanks. Didn't know about that.
I did. Doesn't solve the situation, but at least I will have them in the future.
Can those that just received confirmation I got your sample(s) in this latest round please PM me?
Time to finally go to bed and sleep till I'm through, head back into it tomorrow. Heartfelt thanks to all. One of the most amazing weeks of my life, and I owe it all to you. Peace and love. Good night.
Can those that just received confirmation I got your sample(s) in this latest round please PM me?
Time to finally go to bed and sleep till I'm through, head back into it tomorrow. Heartfelt thanks to all. One of the most amazing weeks of my life, and I owe it all to you. Peace and love. Good night.
Which model? Make sure you have a calibration weight and learn the limits and how to squeeze out the accuracy they are capable of. These are simple devices that measure distortion of a load cell, then linearize the measurement with an on-board microprocessor. Everything affects them, say even how long the sample is on the platform, and exactly on which spot. With a $30 instrument, it's a running battle to get precise readings, but it's eminently doable. The one I have drives me nuts with it's non-adjustable time-out. I have to keep doing stuff on it with my left hand while prepping samples with right so it doesn't turn off to save batteries ;-)
Big thanks, Kurt!
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