Circular No. 353/69/97-CX I am directed to say that Board vide its Circular No. 6/86-CX.4 dated 25.09.1986 had issued certain clarifications regarding the classification of various parts and accessories of refrigerating and air-conditioning machinery and appliances to enable the field formations to eliminate divergence in the practice of assessments of these products. In the said Circular, general guidelines were given for determining the classification of various parts and accessories of refrigerating
“In respect of waste oil, if on sampling, the concentration of Poly-Chlorinated Biphenyl, Poly-Chlorinated Tripheny1 and Poly-Brominated Bipheny1 is more than 5mg/ 1, Chlorinated solvents, benzene total Poly Aromatic Hydrocarbons more than 100 mg/1, and heavy metals (arsenic, barium, chromium, copper cadmium, nickel, lead, zinc) each more than 100mg/1, waste oil can be
