Dow FR-250, 35 µg/mL in Isooctane, 1ml Back Catalog number: B-250S-0.35X Availability: In the manufacturer's stock Price on request - + Recommended S-4142-2-10IO Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1 Price on request 92788 EPA Method 8081A Pesticide Standard B Price on request S-4278-50-PEX5 ISO 9377-2Mod Standard Mixture of n-Alkanes C7+C8+C9+C10-C40 in n-Pentane 19 Analytes, each 50µg/mL in n-Pentane; units: 1x1mL, 1x5mL, 10x1mL 1240.7: n-Heptane 1242.8: n-Octane 1245.9: n-Nonane 1875.10: n-Decane 1132.12: n-Dodecane 1134.14: n-Tetr Price on request