Hydraulic lime
Hydraulic lime for construction and building use
HSN 2522 30 00 (Hydraulic 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 (IEC), bill of entry, commercial invoice, packing list. Related lime products under the same heading — quicklime and slaked lime — or calcium oxide and hydroxide classified under Chapter 28 may carry distinct compliance obligations, making precise classification essential.
Hydraulic lime sits within a heading that also covers quicklime and slaked lime, both of which have attracted BIS standardisation activity in the past; a product mislabelled or mis-specified at the point of import risks re-classification to a line that does carry compliance. Calcium oxide and calcium hydroxide — chemically adjacent to hydraulic lime — fall under Chapter 28 and operate under a different regulatory framework. Detention pending re-classification and retrospective duty recovery are the direct consequences of an incorrect tariff declaration.