Sulfide (S) Back Catalog number: 50195 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93543 EPA Method 8141 Standard Price on request 1009.5-100MG 3-Methyltetrahydrothiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 4740-00-5 Price on request EPA-8280CCAV Calibration Kit; Alternate Volume, 5 x 200ul, nonane Price on request