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1. ScopeThis method is for determining hydrocarbon distribution in petroleum naphtha, kerosene (jet fuel), and diesel derived from oxygenated feedstocks such as vegetable or tallow oils in the range of C3 to C39. Specific components of a boiling point of 85° C (C6) and less are identified individually. Higher boiling normal paraffins are identified individually, while the non-normals are grouped according to approximate carbon number distribution. The lower limit of quantitation for any compound or grouping is 0.01 mass %. Due to non-normals eluting at n-paraffin sites, the lower limit of quantitation for n-paraffins may not be as low. Components of C3 and lower molecular weight should not be considered quantitative due to their volatility, see Note. This procedure is not appropriate for analyzing oxygenated feed-stocks prior to the deoxygenation stage in the EcoFining process. Residual oxygenates in feedstocks may not elute from the instrument and are not quantified by this analysis.