Utah Admin. Code R66-3-10
(1) A sample and related lot or batch of cannabis plant product, cannabis concentrate, or cannabis product fails quality assurance testing for residual solvents if the results exceed the limits provided in Table 6, unless the solvent is:
(c) generally considered to be safe for the intended form of use.
TABLE 6List of Solvents and Action LevelsSolvent Chemical Abstract Service (CAS) Registry numberAction level ppm1,2 Dimethoxyethane110-71-41001,4 Dioxane123-9 3801-Butanol71-36-3 5,0001-Pentanol71-41-05,0001-Propanol71-23-85,0002-Butanol78-92-25,0002-Butanone78-93-3 5,0002-Ethoxyethanol110-80-51602-methylbutane78-78-4 5,0002-Propanol (IPA)67-63-05,000Acetone67-64-15,000Acetonitrile75-05-8410Benzene71-43-22
Butane 106-97-85,000Cumene98-82-870Cyclohexane110-82-73,880Dichloromethane75-09-26002,2-dimethylbutane75-83-2 2902,3-dimethylbutane79-29-8 2901,2-dimethylbenzene 95-47-6 See Xylenes1,3-dimethylbenzene 108-38-3 See Xylenes1,4-dimethylbenzene106-42-3 See XylenesDimethyl sulfoxide 67-68-5 5,000Ethanol64-17-5 5,000Ethyl acetate 141-78-6 5,000Ethylbenzene100-41-4 See XylenesEthyl ether60-29-7 5,000Ethylene glycol 107-21-1 620Ethylene Oxide75-21-8 50Heptane142-82-5 5,000n-Hexane110-54-3 290Isopropyl acetate 2905,000Methanol67-56-1 3,000Methylpropane75-28-5 5,0002-Methylpentane107-83-5 2903-Methylpentane96-14-0 290N,N-dimethylacetamide127-19-5 1,090N,N-dimethylformamide 68-12-2 880Pentane 109-66-0 5,000Propane74-98-6 5,000Pyridine110-86-1 100Sulfolane 126-33-0 160Tetrahydrofuran109-99-9 720Toluene108-88-3 890Xylenes1330-20-7 2,170
(2) Xylenes is a combination of the following:
KEY: cannabis testing, quality assurance, cannabis laboratory, water activity standards, foreign matter standards, microbial life, pesticide standards, residual solvents standards, heavy metal standards, mycotoxin standards, terpene standards
Date of Last Change: August 21, 2025
Authorizing, and Implemented or Interpreted Law: 4-41a-701