QC Standard 5 Back Catalog number: 52088 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19494 EPA Method 524 & 624 - Internal Standard Price on request 678651 Eprinomectin, 100 µg/ml, Acetonitrile, 1ml Price on request 70112 Dibenzo(a,h)anthracene Price on request