Calibration Standard Mix 2 Back Catalog number: 52044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70067 4-Chloroaniline Price on request 71620 Ethylcyclohexane Price on request DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request