Refractory ceramic classification turns on essential character and end use, placing alumina bed supports under the refractory heading.

Alumina balls, pellets, extrudates and lumps used as refractory bed supports were classified under Heading 6901.00, not Heading 6907.00, because their essential character, technical description and end use showed them to be refractory ceramic goods. The materials functioned as bed toppings and supports for catalyst beds, protected against impurities, maintained uniform gas distribution, and withstood high temperatures and thermal shock. Heading 6901 covers refractory ceramic goods including supports, while Heading 6907 applies to ceramic wares for laboratory, chemical or other technical uses and does not extend to refractory goods. The assessee's classification was accepted.

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Issues: Whether alumina balls, pellets, extrudates and lumps used as refractory bed supports were classifiable under Heading 6901.00 or under Heading 6907.00 of the Central Excise Tariff Act, 1985.

Analysis: The goods were shown by the technical literature to be used as bed toppings and bed supports for packing the catalyst bed, protecting it from impurities, maintaining uniform gas distribution and withstanding high temperatures and thermal shock. Their function, low porosity and inert character distinguished them from catalyst carriers, which are porous and form part of the catalyst. Heading 6901 specifically covers refractory ceramic goods including supports, while Heading 6907 applies to ceramic wares for laboratory, chemical or other technical uses and does not extend to refractory goods designed to resist high temperature. The Board circular relied on by the Revenue dealt with alumina balls or rings used as carriers and not as bed supports, and the chemical expert's opinion was not treated as determinative of classification.

Conclusion: The goods were correctly classifiable under Heading 6901.00 and not under Heading 6907.00, and the classification accepted by the assessee succeeded.

Final Conclusion: The appeal was allowed and the alumina balls, pellets, extrudates and lumps used as toppings and bed supports were held to fall under the refractory heading.

Ratio Decidendi: Goods are to be classified according to their essential character, technical description and end use, and refractory goods designed to withstand high temperature remain classifiable under the refractory heading even if they serve a technical support function.

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