EPA Method 8240A - Purgeable Surrogate Std Back Catalog number: 24002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8581.6-50-ME Perfluorohexane sulfonic acid, potassium salt, 50ug/ml, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3871-99-6 Price on request 676901 Dimethenamid-P ESA sodium salt, 10mg Price on request 680144 Fluazifop-methyl, 50mg Price on request