HFC-227ea Calibration Gas Standard from Mexico
A certified reference gas standard containing HFC-227ea at trace concentrations in nitrogen, used for calibrating gas chromatography equipment and atmospheric monitoring instruments. The HFC-227ea component is a saturated fluorinated derivative of an acyclic hydrocarbon, falling squarely under tariff item 2903.46.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the gas mixture certificate of analysis accompanies the shipment to verify the HFC-227ea concentration
• Declare the product under 2903.46.00, noting the pure HFC-227ea component
• Check if the nitrogen balance gas affects classification under Chapter 29 notes