EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DDF-MDT Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 82470 SPCC Class IV- Method 8261 Price on request 12142.18-10MG Flurenol-butyl,neat,neat,10mg, Price on request