HFC-23 Calibration Standard Gas from Mexico
A certified reference mixture containing known HFC-23 concentrations used for calibrating environmental monitoring equipment. It is classified under tariff item 3827.51.00 because it contains trifluoromethane and is free of CFCs and HCFCs, aligning with the heading's scope for mixtures of halogenated derivatives.
Duty Rate — Mexico → Canada
0%
Import Tips
• Include a certificate of analysis showing HFC-23 concentration and absence of CFCs/HCFCs
• Ensure the product is labeled as a calibration standard to avoid misclassification
• Check if the gas cylinder meets Canadian transport regulations