EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0199.9-K-IO 6-Methylbenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16587-47-6 Price on request 18-B-36-CCZ 1,8-Dibromo-3,6-dichloro-9H-carbazole, 1.2ml x 50ug/ml, nonane Price on request S-4059-0.5-10B Thiophene in Thiophene-free Benzene Units: 5x1mL ampoule, 10mL screw-capped bottle Chiron No. Concentration Light White Mineral Oil µg thiophene/g (20 cSt at 40°C) Price on request