EPA Method 507 - Performance Check Solution Back Catalog number: 19137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4024-SET CPI (1) Control Standards Set 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 1238.7-1ML 2-Methylhexane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 591-76-4 Price on request S-4602-100-MEX5 X-ray contrast media mixture 100µg/mL each in methanol 8931.16 Iomeprol 8928.17 Iopamidol 8929.18 Iopromide 8933.11 Amidotriazoic acid Price on request