Laboratory-Grade Propane Carrier Gas from Mexico
Gaseous propane exceeding 90% purity used as carrier gas in mass spectrometry and GC-MS systems. Under HTS 2711.29.00.10 for its specific high-purity gaseous propane characteristics in Chapter 27.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Submit chromatograms proving single-peak propane at 90%+ to counter purity disputes
• Use UN-approved cylinders with pressure relief devices per 49 CFR 173.301
• Document research end-use to qualify for potential duty exemptions under HTSUS GRI 3