OIT Industrial Water Treatment Biocide
OIT Industrial Water Treatment Biocide is a liquid concentrate of 2-n-octyl-4-isothiazolin-3-one used for microbial control in cooling towers and paper mills. It is classified under 3808.99.20 as a disinfectant preparation in bulk or large packages.
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 |
PGA flags (2)Show detailsHide detailsCFIAAll ProgramsMay be requiredHCPesticides (Pest Management Regulatory AgencyMay be required
- CFIA
All Programs · May be required · on some HTS numbers under this code
May require CFIA All Programs depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Within Range 3808991090–3808992090. Logic: MATCH IF (Valid HS Code).
- HC
Pesticides (Pest Management Regulatory Agency · May be required
May require HC Pesticides (Pest Management Regulatory Agency depending on intended use (HC06, HC07, HC08, HC09) and Canadian product category (HC38, HC39). Matching criteria: Starts With 3808. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
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 packaged for retail sale in 1.36 kg or smaller containers
Retail-sized packages fall under this sibling tariff item.
If specifically formulated as a disinfectant for industrial use
Disinfectants for industrial applications may be classified under this heading.
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
• Verify the gross weight per package exceeds 1.36 kg to qualify for this tariff item
• Be ready to explain the industrial disinfection application, as the CBSA may require details on the product's use in water treatment
Related Products under Tariff item 3808.99.20
BIT 20N 2-Methyl-4-Isothiazolin-3-one Preservative
BIT 20N is a 20% aqueous solution of 2-methyl-4-isothiazolin-3-one, a biocide used to preserve metalworking fluids from microbial degradation. It is classified under tariff item 3808.99.20 as a preparation of a kind used as a preservative, put up in bulk or packages exceeding 1.36 kg gross weight.
CMIT/MIT/MIT Tri-Active Preservative Blend
CMIT/MIT/MIT Tri-Active Preservative Blend is a broad-spectrum antimicrobial mixture containing chloromethylisothiazolinone and methylisothiazolinone, used to protect paints and adhesives from microbial spoilage. It is classified under 3808.99.20 as a preparation for preservation, in bulk or large packages.
DCOIT Wood Preservative Concentrate
DCOIT Wood Preservative Concentrate is a formulation of 4,5-dichloro-2-n-octyl-isothiazolin-3-one used to protect pressure-treated lumber from fungal decay. It falls under 3808.99.20 as a fungicide preparation in bulk or packages over 1.36 kg.
Kathon CG Isothiazolinone Biocide Solution
Kathon CG Isothiazolinone Biocide Solution is a water-based preservative containing a 3:1 ratio of CMIT and MIT, used in personal care products such as shampoos and lotions. It is classified under 3808.99.20 as a preservative preparation in bulk or large packages.
Meldane MIT/MIT/CMIT Preservative Blend
Meldane MIT/MIT/CMIT Preservative Blend is a triple isothiazolinone system combining methylisothiazolinone and chloromethylisothiazolinone for preservation of water-based systems. It is classified under 3808.99.20 as a biocide preparation in bulk or packages exceeding 1.36 kg.
Nuosept 95 DCOIT Biocide
Nuosept 95 DCOIT Biocide is a high-purity liquid of 4,5-dichloro-2-n-octyl-isothiazolin-3-one used to preserve adhesives and polymers. It falls under 3808.99.20 as a preservative preparation in bulk or packages over 1.36 kg.