Pentachlorobenzene Lab Reference Standard from United States
A certified reference material of pentachlorobenzene (ISO), a pure chlorinated aromatic hydrocarbon, used for analytical calibration in environmental testing laboratories. Despite small packaging, it is classified as the separate chemically defined compound under Chapter 29, not as a preparation.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is labeled as a pure reference standard, not a solution or mixture, to qualify for tariff item 2903.93.00
• Declare the exact purity and CAS number to avoid reclassification
• Keep certificates of analysis handy for CBSA inspection