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1.1 ,This detailed hydrocarbon analysis (DHA) test method covers the determination of hydrocarbon components paraffins, naphthenes, and monoaromatics (PNA) of petroleum naphthas as enumerated in Table 1. Components eluting after n-nonane (bp 150.8 ,°,C) are determined as a single group.
(A) ,Extrapolated from n-C6 and n-C7. See A1.1.3.