R66-3-10. Residual Solvent Standards

(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: (a) a component of the product formulation; (b) listed as an ingredient; and (c) generally considered to be safe for the intended form of use. TABLE 6 List of Solvents and Action Levels Solvent Chemical Abstract Service (CAS) Registry number Action level ppm 1,2 Dimethoxyethane 110-71-4 100 1,4 Dioxane 123-9 380 1-Butanol 71-36-3 5,000 1-Pentanol 71-41-0 5,000 1-Propanol 71-23-8 5,000 2-Butanol 78-92-2 5,000 2-Butanone 78-93-3 5,000 2-Ethoxyethanol 110-80-5 160 2-methylbutane 78-78-4 5,000 2-Propanol (IPA) 67-63-0 5,000 Acetone 67-64-1 5,000 Acetonitrile 75-05-8 410 Benzene 71-43-2 2 Butane 106-97-8 5,000 Cumene 98-82-8 70 Cyclohexane 110-82-7 3,880 Dichloromethane 75-09-2 600 2,2-dimethylbutane 75-83-2 290 2,3-dimethylbutane 79-29-8 290 1,2-dimethylbenzene 95-47-6 See Xylenes 1,3-dimethylbenzene 108-38-3 See Xylenes 1,4-dimethylbenzene 106-42-3 See Xylenes Dimethyl sulfoxide 67-68-5 5,000 Ethanol 64-17-5 5,000 Ethyl acetate 141-78-6 5,000 Ethylbenzene 100-41-4 See Xylenes Ethyl ether 60-29-7 5,000 Ethylene glycol 107-21-1 620 Ethylene Oxide 75-21-8 50 Heptane 142-82-5 5,000 n-Hexane 110-54-3 290 Isopropyl acetate 290 5,000 Methanol 67-56-1 3,000 Methylpropane 75-28-5 5,000 2-Methylpentane 107-83-5 290 3-Methylpentane 96-14-0 290 N,N-dimethylacetamide 127-19-5 1,090 N,N-dimethylformamide 68-12-2 880 Pentane 109-66-0 5,000 Propane 74-98-6 5,000 Pyridine 110-86-1 100 Sulfolane 126-33-0 160 Tetrahydrofuran 109-99-9 720 Toluene 108-88-3 890 Xylenes 1330-20-7 2,170 (2) Xylenes is a combination of the following: (a) 1,2-dimethylbenzene; (b) 1,3-dimethylbenzene; (c) 1,4-dimethylbenzene; and (d) ethyl benzene.