As part of an ongoing effort to help testing laboratories more reliably determine the potency and purity of marijuana and hemp, a federal science agency has begun selling packages of what it’s calling “some of the most carefully quantified cannabis ever sold.”
Picking up 4.5 grams of the stuff will cost $783, or $174 a gram—far more expensive than the cannabis that’s commercially available in states across the country.
The hemp product, sold by the National Institute of Standards and Technology (NIST), isn’t intended for consumption. Rather, it’s a tool to help labs calibrate their analyses of cannabinoids and toxic elements in both hemp and higher-THC marijuana.
“To ensure that their measurement methods are working properly, labs can analyze a bit of this material,” NIST said in a press release about its new offering, known as hemp plant reference material, or RM 8210. “If their numbers match those from NIST to within an accepted margin of error, all is well. If not, they’ll know they need to recalibrate their instruments or otherwise troubleshoot their methods.”
For just under $800, a lab receives three 1.5-gram sample packages of hemp. The samples are carefully measured by NIST for a variety of chemical components, including eight individual cannabinoids such as CBD and delta-9 THC, as well as 13 different toxic elements, like arsenic and heavy metals.
“Although this reference material is composed of hemp,” NIST said in its release, “labs can use it to validate their measurements of both hemp and marijuana, and it will help companies in the fast-growing cannabis industry and state regulators ensure that cannabis products are safe and accurately labeled.”
NIST biologist Colleen Bryan, who was part of the team the developed the reference material, said that consumers ought to be able to rely on what’s printed on product labels.
“If you buy a product that claims to have 25 milligrams of CBD per dose, you should be able to trust that number,” Bryan said, noting that some people use cannabis for medical reasons and may be particularly concerned about safety. “This reference material will help ensure that the cannabis they buy does not contain unsafe levels of toxic elements.”
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