https://www.taxtmi.com/circulars?id=286 The proportion of fly ash must be calculated with reference to the finished asbestos cement product in dry condition: weight of fly ash divided by weight of the asbestos cement product (dry) expressed as a percentage. Commissioners may require manufacturers to maintain accounts in the proforma previously prescribed by the Board when specifying records to be kept. en-us Tue, 10 Aug 1999 00:00:00 +0530 Tue, 23 Sep 2008 11:18:00 +0530 TaxTMI RSS Generator https://www.taxtmi.com/circulars?id=286 The proportion of fly ash must be calculated with reference to the finished asbestos cement product in dry condition: weight of fly ash divided by weight of the asbestos cement product (dry) expressed as a percentage. Commissioners may require manufacturers to maintain accounts in the proforma previously prescribed by the Board when specifying records to be kept. Circulars Central Excise Tue, 10 Aug 1999 00:00:00 +0530 https://www.taxtmi.com/circulars?id=286