Petroleum Products QC

Myth -  Kerosene Storage tank top sample has lowest Flash Point Fact -  Kerosene Storage tank top sample may not have lowest Flash Point Properties of petroleum products in a storage tank may not be same at all levels. As product leaves the refinery, it may be received further at intermediate storage locations (terminals or depots) by different modes of transportation like pipeline transfer, ocean tankers, Rail and/or Road. This and also previous products remaining in the tank and the fresh new product being received in the storage tanks usually have different densities. some tanks receive products from different refineries. There is usually no product circulation facility at such location to make the product homogeneous and also practically it is not a desired requirement that the product after receipt in storage tank is homogeneous, as long as it meets relevant specification.  In view of above, the petroleum products in a storage tank usually remain non-homogeneous ie. h