EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4027-ASS-IO CPI (1) Control Standard 3 Isooctane solutions S-4025 (mg/mL) S-4026 (mg/mL) S-4027 (mg/mL) C22 1.0 1.0 1.0 C23 0.9 1.0 1.1 C24 0.8 Price on request 0330.14-K-IO n-Octylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2189-60-8 Price on request 73603 Chlorotetracycline Price on request