ASTM Method D5443 Hydrocarbon Test Mixture: 28 components: 1,2,3-Trimethylbenzene [CAS:526-73-8] 5% (w/w) ; 1,2,4,5-Tetramethylbenzene [CAS:95-93-2] 5% (w/w) ; 1,2,4-Trimethylbenzene [CAS:95-63-6] 4.5% (w/w) ; 1,2,4-Trimethylcyclohexane (mixture of stereoisome [CAS:2234-75-5] 4.25% (w/w) ; 1,2-Dimethylcyclohexane [CAS:583-57-3] 5% (w/w) ; 1-Hexene [CAS:592-41-6] 1.5% (w/w) ; Iso-octane [CAS:540-84-1] 5% (w/w) ; 2,3-Dimethylbutane [CAS:79-29-8] 2% (w/w) ; 4-Methyl-1-hexene [CAS:3769-23-1] 1.5% (w