RESIDUAL SOLVENTS
ASL’s residual solvent analysis is performed using Gas Chromatography (GC).
Per Colorado law, the following are the solvents and their limits up starting February 1, 2018:
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- Acetone <1000 ppm
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- Benzene <2 ppm
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- Butanes <1000 ppm
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- Ethanol <1000 ppm
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- Heptanes <1000 ppm
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- Hexane <60 ppm
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- Isopropyl alcohol <1000 ppm
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- Pentane <1000 ppm
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- Propane <1000 ppm
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- Toluene <180 ppm
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- Total Xylenes <430 ppm