1972 (2) TMI 36

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....n this Appeal, the short question that arises for consi­deration is whether the Asbestos Cement Pressure Pipes manufactured by the Respondent-Company, were properly classified as falling under Class 3 of the Indian Standard Specification for Asbestos Cement Pressure Pipes specified in IS: 1592-1960 of the Indian Standards Institution, New Delhi-1. In view of the notification issued under sub-s....

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....s test i.e., not less than 30 kg., per square centimetre as laid down in paragraph 4-1 and 4-2 of the said Specification. The certificates issued by the Ministry of Supply and Technical Division, National Test House, Alipore, Calcutta, in respect of the A.C. Pressure Pipes in question, disclose that so far as 84 mm., pipes are concerned, they were subjected to Internal Hydraulic pressure water tig....

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....great weight, the is not precluded from considering whether the certificate is issued by the expert after subjecting the material to the tests envisaged by the specifications laid down by the Indian Standard Institute referred to above. The certificates in question do not show that the A.C. Pressure Pipes of less than 125 mm., were subjected to the test of more than 15 kg. per square centimetre, a....