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Chapter 38 — Miscellaneous chemical products.
Chapter 38 covers prepared and mixed chemical products that do not fall neatly into Chapters 28 or 29. Unlike Chapters 28/29, classification here depends heavily on intended use and presentation rather than chemical structure alone.
§Key headings
| Heading | Description |
|---|---|
| 38.02 | Activated carbon; activated natural mineral products |
| 38.09 | Finishing agents, dye carriers for textiles, etc. |
| 38.11 | Anti-knock / anti-oxidant preparations for mineral oils |
| 38.12 | Prepared rubber/plastic stabilizers |
| 38.17 | Mixed alkylbenzenes / alkylnaphthalenes |
| 38.20 | Anti-freezing preparations and de-icing fluids |
| 38.22 | Diagnostic / laboratory reagents |
| 38.23 | Industrial fatty acids, acid oils, industrial fatty alcohols |
| 38.24 | Chemical preparations NEC (catch-all) |
§Classification logic
Use [classify_by_intended_use] for mixtures whose chapter depends primarily
on end-use. Use [CHAPTER38_CATCH_ALL_CODE] when no other rule applies.