ASTM D-4815 Calibration Mix #5 Back Catalog number: 51068 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0918.14-500-IO 2,4-Dimethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 31317-18-7 Price on request 70690 Fenvalerate Price on request 19362 EPA Method 525 - PAH Standard Price on request