HFC-23 Calibration Gas Standard from Germany
NIST-traceable calibration mixture containing known HFC-23 concentrations for greenhouse gas monitoring equipment. Classified under HTS 3827.59.00.00 as HFC mixture. Used by EPA-approved testing laboratories.
Duty Rate — Germany → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include NIST certificate of analysis; verify cylinder pressure test dates; provide uncertainty budget for concentrations