Spiking Standard 5 Back Catalog number: 52071 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 23012 EPA Method 8260B Surrogate Standard Price on request NK-ST-A Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 677532 Benz[a]anthracene, 20mg Price on request