Keystone State Testing strives to be the gold standard in cannabis testing by achieving the highest levels of accuracy and precision in analytical solutions while using integrity, rigor and scientific standards.
We do not accept Walk-in's at this time
Awards & Social Media
Check out our New York locations Instagram!
4 January 2021: Dr. Kelly Greenland quoted in Marijuana Business Daily on "Lack of standards, dubious business practices".
17 November 2020: Dr. Kelly Greenland and Robert Gearhart of Keystone State Testing LLC assist PSU with CBD study "Certain CBD oils no better than pure CBD at inhibiting certain cancer cell lines"
20 October 2020: Keystone State Testing assists with The Potency Determination of 15 Cannabinoids using the Hemp Analyzer.
14 September 2020: Keystone State Testing assists with the preservation and augmentation of volatile terpenes in cannabis inflorescence.
20 February 2020: Keystone State Testing completes re-accreditation of ISO:17025 to 2017 standard with 84 methods on the scope covering hemp and marijuana in flower, plant and processed forms.
27 January 2020: Robert Gearhart Jr. speaks at Pennsylvania State University Extension during Hemp Production Workshop
+1.607.301.0884 (NY) Vestal
Sun-Thurs 8am - 5pm
Please contact us to set up an appointment.