Lipomed and a few other companies actually sell all kinds of psychoactives and narcotics as reference standards for toxicology, but the market for cannabis references got a lot larger since most states require laboratory assay of cannabis products. I think gas chromatography by flame ionization is the typical method but you have to calibrate your equipment against some really top-shelf stuff.
Usually standard reference materials are just regular materials that have been measured really precisely and carefully. So you’re paying for the certificate of analysis and the tracking of lot numbers and such for wherever the material was sourced
Fire safety testing for furniture upholstery involves testing that it resists being ignited by a lit cigarette. The problem is that since the test protocol was written, states (starting with New York) have passed laws requiring cigarettes to be less able to ignite furniture! So upholstery materials that would fail the test with a cigarette from the 1970s, when the standard was written, might now pass it.
In response, NIST developed a standard cigarette which burns like one from 1992 to ensure consistency in these tests.
(There is also a standard cigarette used to calibrate measurement of the ignition strength of cigarettes)
The first part is odd, because it feels like consistency is not important. The industry might not need to put as much resources into fire retardants if cigarettes are getting less flammable over time, and I assume cigarettes have a lifetime you can assume they will exist for by vintage.
Static reference cigarette does make sense though.
Cigarettes aren't the only thing that might ignite furniture- there's also the risk of, say, a child playing with matches, or a set of hair straighteners left on.
Or, of course, smoking materials other than mass-produced cigarettes, like joints or hand-rolled cigarettes.
Here's the good stuff: https://www.lipomed-usa.com/en/cannabinoide
Lipomed and a few other companies actually sell all kinds of psychoactives and narcotics as reference standards for toxicology, but the market for cannabis references got a lot larger since most states require laboratory assay of cannabis products. I think gas chromatography by flame ionization is the typical method but you have to calibrate your equipment against some really top-shelf stuff.
Tom Scott did a video about this a few years ago:
https://www.youtube.com/watch?v=jvJzi0BXcGI
Derek Muller of Veritasium also had an episode:
https://www.youtube.com/watch?v=esQyYGezS7c
one of my favorites
https://www.sigmaaldrich.com/US/en/product/sial/nist2387
dunno what the cannabis might cost
https://www.nist.gov/news-events/news/2024/07/nists-new-hemp...
Worded if they have standards for the pure sand used in wafer production, or if wafers are considered a standard? Thoughts?
Usually standard reference materials are just regular materials that have been measured really precisely and carefully. So you’re paying for the certificate of analysis and the tracking of lot numbers and such for wherever the material was sourced
Besides famous NIST peanut butter they also have:
* Bovine Liver 20g
* Dry Cat Food 5 pouches x 10g each
* Urban Dust 2g
* Domestic Sludge 40g
And cigarettes, for a very specific reason.
Fire safety testing for furniture upholstery involves testing that it resists being ignited by a lit cigarette. The problem is that since the test protocol was written, states (starting with New York) have passed laws requiring cigarettes to be less able to ignite furniture! So upholstery materials that would fail the test with a cigarette from the 1970s, when the standard was written, might now pass it.
In response, NIST developed a standard cigarette which burns like one from 1992 to ensure consistency in these tests.
(There is also a standard cigarette used to calibrate measurement of the ignition strength of cigarettes)
https://www.nist.gov/fire/history/standard-reference-cigaret...
The first part is odd, because it feels like consistency is not important. The industry might not need to put as much resources into fire retardants if cigarettes are getting less flammable over time, and I assume cigarettes have a lifetime you can assume they will exist for by vintage.
Static reference cigarette does make sense though.
Cigarettes aren't the only thing that might ignite furniture- there's also the risk of, say, a child playing with matches, or a set of hair straighteners left on.
Or, of course, smoking materials other than mass-produced cigarettes, like joints or hand-rolled cigarettes.