Laboratory-Grade Propane Carrier Gas from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 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