Slaked lime
Slaked lime (calcium hydroxide) for industrial or construction use
HSN 2522 20 00 (Slaked lime) 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, bill of entry, commercial invoice, packing list. Other lime products within Chapter 25 — quicklime and hydraulic lime — occupy separate tariff lines, and calcium oxide or hydroxide meeting the purity threshold of Heading 2825 is classified outside this heading entirely.
The absence of compliance at this tariff line does not extend to neighbouring lines: quicklime and hydraulic lime are separately classified within Chapter 25, and high-purity calcium hydroxide meeting the specifications of Heading 2825 falls under a different chapter with its own compliance considerations. Re-classification on customs examination — particularly where purity grades suggest a pharmaceutical or chemical-grade product — triggers retrospective compliance and potential detention. Verify the product specification, intended end-use, and purity grade against the customs tariff before relying on the absence of compliance here.