Methyl Chloroform Calibration Standard for GC-MS from China
A certified reference material containing a known concentration of methyl chloroform for calibrating gas chromatography-mass spectrometry (GC-MS) instruments in environmental laboratories. It is used for volatile organic compound (VOC) analysis compliance testing. As a certified reference material, it is classified under heading 38.22, specifically this tariff item.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the product is accompanied by a certificate indicating certified values, methods, and uncertainty, as required by chapter note 2(A)
• Provide the CBSA with the certificate and the intended calibration use
• Check if methyl chloroform is regulated under ozone-depleting substances regulations and requires permits