Yeah and those COA which most every vendor offers are done in house and get updated once every other millennium.
None found for ECX
http://wholesale.heartlandvapes.com/docs/coa-nic.jpg
http://wizardlabs.us/image/data/coa/CoA_USP_Nicotine_N93140116.pdf
» Nude Nicotine Certificate of Analysis
https://www.myfreedomsmokes.com/product_images/Nic_GCMS_COA.pdf
http://www.rtsvapes.com/v/vspfiles/downloadables/Nicotine COA.pdf
