Silica bricks and shapes
Silica refractory bricks and shapes for high-temperature use
HSN 6902 20 10 (Silica bricks and shapes) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other refractory ceramic constructional goods within Chapter 69 — particularly those classified by alumina content or by specific industrial application — may sit under sibling tariff lines that carry distinct compliance obligations.
The principal importer risk at this tariff line is misclassification: refractory products containing more than 50% alumina (Al2O3), or mixtures of alumina and silica, are classified separately within heading 6902, and customs re-examination of the chemical composition can trigger reclassification. A reclassification event carries retrospective compliance exposure and potential detention pending resolution. Commission an independent certificate of analysis confirming SiO2 predominance before filing the bill of entry.