EPA Method 8240A - Purgeable Surr Std Back Catalog number: 20002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9136 4-Methyl-2-pentanone, 100µg/mL in MeOH, 1ml Price on request 72071 Benzidine-d8 Price on request 73500 1-(3,4-Dichlorophenyl)urea Price on request