EPA Method 8250/8250A Cal Check BNS Back Catalog number: 82507 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0886.13-500-IO 2-Methyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 20928-02-3 Price on request 72828 Kresoxim methyl Price on request 73489 Citalopram Price on request