EPA Method 8315 Calibration Mix #2 Back Catalog number: 83510 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-C Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 70168 Endosulfan II Price on request 71085 2-Ethylhexanoic acid Price on request