Hexachlorobenzene EPA Method 608 Calibration Standard
Hexachlorobenzene EPA Method 608 Calibration Standard is a certified reference material of hexachlorobenzene dissolved in methanol, used for wastewater analysis. The solution is a normal and necessary method of putting up the product for transport and safety, as allowed under Chapter 29 Note 1(e). The hexachlorobenzene itself is explicitly named under tariff item 2903.92.00, and the methanol solvent does not render it suitable for a specific use beyond general analytical purposes.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the calibration standard is presented as a kit or set with other reagents for a specific test method
Sets of reagents for analytical purposes may be classified under heading 38.22 if they are put up for retail sale as a unit.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the methanol solution concentration is clearly stated on the label, as CBSA may verify the solvent is for transport or safety only
• Include the EPA method reference to justify the analytical use, but note that classification remains under 2903.92.00
• Check if the product requires a permit under Canadian environmental laws for persistent organic pollutants
Related Products under Tariff item 2903.92.00
DDT (Dichlorodiphenyltrichloroethane) USP Reference Standard
DDT (Dichlorodiphenyltrichloroethane) USP Reference Standard is a highly purified form of DDT (clofenotane, INN), specifically 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane. It is used as an analytical reference standard for residue testing in laboratories. This product is a separate chemically defined organic compound, meeting the criteria of Chapter 29 Note 1(a), and is explicitly named under tariff item 2903.92.00.
Hexachlorobenzene 99% ACS Reagent Grade
Hexachlorobenzene 99% ACS Reagent Grade is a high-purity chemical compound used in organic synthesis and laboratory calibration. It is a separate chemically defined organic compound, specifically hexachlorobenzene (ISO), and is explicitly named under tariff item 2903.92.00. The product meets Chapter 29 Note 1(a) as a pure compound, regardless of its ACS grade designation.
Hexachlorobenzene (HCB) Technical Grade
Hexachlorobenzene (HCB) Technical Grade is a chlorinated aromatic hydrocarbon used as an intermediate in organic synthesis and historically as a fungicide. It is a separate chemically defined organic compound, explicitly named under tariff item 2903.92.00. The technical grade may contain impurities, which are permitted under Chapter 29 Note 1(a) as long as the product remains a chemically defined compound.
p,p'-DDT Isomeric Standard 98% Purity
p,p'-DDT Isomeric Standard 98% Purity is the pure p,p'-DDT isomer (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane) used for environmental monitoring and GC-MS calibration. It is a separate chemically defined organic compound, explicitly named under tariff item 2903.92.00. The product is a single isomer, which is covered by Chapter 29 Note 1(a) as a chemically defined compound.
Technical DDT 75% Wettable Powder Reference
Technical DDT 75% Wettable Powder Reference is a standardized formulation of DDT containing specified impurities, used for historical pesticide residue studies. The product is a mixture of DDT with other substances, but it is presented as a reference material for research. While DDT is explicitly named under tariff item 2903.92.00, the formulation may not meet the purity requirements of Chapter 29 Note 1(a) unless the impurities are incidental to the DDT compound itself.