EPA Method 508A DCB Stock Solution Back Catalog number: 30020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4254-50-10T Sulfur Calibr. Mix. Dibenzothiophene in Toluene (20 cSt)Unit: 10mL screw-capped bottle Matrix White oil White Oil Concentration Isooctane Toluene 3 cSt Price on request 9359-100MG Forafac 1183, Amphoteric perfluorinated surfactant, 40% , neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request 0232.30-100UG Naphtho[8,1,2-abc]coronene (Naphtho[2'.8',2.4]coronene), neat, Solvent-neat, Unit ca. 100µg, # of units-1, Cas.no. 6596-38-9 Price on request