| 3812.10 | | Prepared rubber accelerators: | | | | |
| 3812.20 | | Compound plasticizers for rubber or plastics: | | | | |
| 3812.30 | | Antioxidizing preparations and other compound stabilizers for rubber or plastics: | | | | |
| 3812.30.20 | 00 | Containing any aromatic or modified aromatic antioxidant or other stabilizer: | | | | |
| 3812.30.70 | 00 | Other: | | | | |
| 3813.00 | | Preparations and charges for fire extinguishers; charged fire-extinguishing grenades: | | | | |
| 3814.00 | | Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers: | | | | |
| 3815 | | Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included: | | | | |
| 3815.11.00 | 00 | Supported catalysts: | | | | |
| 3815.90 | | Other: | | | | |
| 3815.90.10 | 00 | Consisting wholly of inorganic substances: | | | | |
| 3817 | | Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902: | | | | |
| 3817.00.10 | 00 | Mixed alkylbenzenes: | | | | |
| 3822.00 | | Diagnostic or laboratory reagents on a backing and prepared diagnostic or laboratory reagents, whether or not on a backing, other than those of heading 3002 or 3006; certified reference materials: | | | | |
| 3822.00.10 | | Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents, whether or not on a backing, other than those of heading 3002 or 3006: | | | | |
| 3823 | | Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols: | | | | |
| 3823.11.00 | 00 | Industrial monocarboxylic fatty acids; acid oils from refining: | | | | |
| 3823.19 | | Other: | | | | |
| 3823.70 | | Industrial fatty alcohols: | | | | |
| 3823.70.20 | 00 | Derived from fatty substances of animal or vegetable origin: | | | | |
| 3824 | | Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: | | | | |
| 3824.40 | | Prepared additives for cements, mortars or concretes: | | | | |
| 3824.71.01 | 00 | Mixtures containing halogenated derivatives of methane, ethane or propane: | | | | |
| 3824.79 | | Other: | | | | |
| 3824.81.00 | 00 | Mixtures and preparations containing oxirane (ethylene oxide), polybrominated biphenyls (PBBs), polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or tris(2,3-dibromopropyl) phosphate: | | | | |
