ASTM Method D3798 p-Xylene Impurity Standard: 10 components; Benzene [CAS:71-43-2]  0.15% (w/w) ; Ethylbenzene [CAS:100-41-4]  0.15% (w/w) ; Isopropylbenzene [CAS:98-82-8]  0.15% (w/w) ; m-Xylene [CAS:108-38-3]  0.15% (w/w) ; n-Octane [CAS:111-65-9]  0.15% (w/w) ; n-Pentane [CAS:109-66-0]  0.15% (w/w) ; o-Xylene [CAS:95-47-6]  0.15% (w/w) ; p-Xylene [CAS:106-42-3]  98.65% (w/w) ; n-Propylbenzene [CAS:103-65-1]  0.15% (w/w) ; Toluene [CAS:108-88-3]  0.15% (w/w)