Commercial identity test governs excise classification of rough ophthalmic blanks, placing them in the residuary tariff entry.

Excise classification turns on commercial identity and functional character in trade, unless the tariff defines the expression otherwise. Rough ophthalmic blanks, though manufactured from purified raw glass through technical processes, are not ordinarily understood as glass or glassware because they are bought by spectacle-lens manufacturers and are not dealt with as general glassware in trade. The residuary tariff entry applies only when goods are not specifically described elsewhere. On that basis, rough ophthalmic blanks were held outside Tariff Item 23-A(4) and classifiable under Tariff Item 68.

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Issues: Whether rough ophthalmic blanks are classifiable under Tariff Item 23-A(4) as other glass or glassware, or under the residuary Tariff Item 68.

Analysis: Classification of goods in excise matters is to be determined by the manner in which the goods are identified in commercial parlance by persons dealing with or using them, unless the statute defines the expression otherwise. The material showed that rough ophthalmic blanks are manufactured from highly purified raw glass through technical, chemical and thermal processes, but their identity and utility are distinct from ordinary glass or glassware. They are purchased by manufacturers of spectacles for making spectacle lenses and are not dealt with by a general merchant in glass or tableware. Their specialized function and trade identity therefore place them outside the ordinary commercial understanding of glassware. The residuary entry applies only when the goods are not elsewhere specified.

Conclusion: Rough ophthalmic blanks do not fall under Tariff Item 23-A(4) and are classifiable under the residuary Tariff Item 68, in favour of the assessee.

Final Conclusion: The appeal succeeded and the impugned classification was set aside, with the goods held to be assessable under the residuary entry rather than as glassware.

Ratio Decidendi: For excise classification, a product must be identified according to its commercial identity and functional character in trade, and a residuary entry applies where the product is not commonly understood as falling within the specific tariff description.

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