bis(2-Ethylhexyl)phthalate-3,4,5,6-d4

Aromatics Calibration Standards Kit (3 Internal Standard Version) 24 Analytes + 3 ISTD, each Vol.% as listed in isooctane; units: 5x1mL Set, one of each Std. 1-5 + opt. 1x1mL (Std. 6) To these calibration standards are 3 deuterated Internal Standards

EPA Method 509 Internal Standard

2,2'-Dichlorobiphenyl (4)