525 Calibration Standard - Spiking Back Catalog number: 95981 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673419 Propamocarb, 100 µg/ml, Acetonitrile, 5ml Price on request 70431 Phthalic anhydride Price on request DF-LCS-B200 Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml , nonane Price on request