EPA Method 8081A Pesticide Standard A Back Catalog number: 92789 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674529 Benzyldimethyltetradecylammonium chloride, 10.0 µg Price on request 53084 QC Standard 1 Price on request 11794.14-25MG 2-Hydroxy-4-methoxybenzophenone-2',3',4',5',6'-d5,neat,neat,25mg, Price on request