Scientific tariff classification requires complete testing of all prescribed parameters before confiscation or penalties can stand.

Where tariff classification depended on conformity with a prescribed scientific standard, CESTAT held that the Revenue had to prove compliance with all material parameters through reliable testing. The laboratory reports were inconclusive because they did not test essential parameters relating to burning quality, colour, and total sulphur, and the testing methodology was not shown to match the prescribed standard. Incomplete testing could not discharge the burden of proving the true nature of the imported goods, so the claimed classification was not established. As a result, confiscation and penalties based on misdeclaration and incorrect classification were not sustainable, and relief to the importers was maintained.

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Issues: Whether the imported goods were correctly classifiable as Superior Kerosene Oil on the basis of the test reports, and whether confiscation and penalties based on the alleged misdeclaration and incorrect classification were sustainable.

Analysis: The relevant tariff entry required conformity with the Indian Standard specification incorporated through the supplementary note to Chapter 27 of the Customs Tariff Act, 1975. The standard prescribed eight parameters, but the laboratory reports did not test three essential parameters relating to burning quality, colour, and total sulphur. The testing methodology was also not shown to be in accordance with the prescribed standard. For a scientific product, incomplete testing could not discharge the Revenue's burden to prove the true nature and classification of the goods. In the absence of evidence that all statutory specifications were met, the test reports were treated as inconclusive and the benefit of doubt followed.

Conclusion: The classification adopted by the Revenue was not established, and the confiscation and penalties were not sustainable.

Final Conclusion: The Revenue's appeals failed, and the order granting relief to the importers was maintained.

Ratio Decidendi: Where a tariff classification depends on conformity with a prescribed scientific standard, the Revenue must prove compliance with all material parameters of that standard through reliable testing; incomplete testing does not establish the classification and cannot sustain confiscation or penalties.

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