EPA 8240B Calibration Standard Back Catalog number: 98430 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675073 Quizalofop-methyl, 20mg Price on request 96545 d,l-Methadone Price on request ACQ-WH03-115 Ethanol standard in whole blood,0.3g/L,whole blood, 1.5mL Price on request