BTEX (20 µg/mL) Back Catalog number: 98518 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4135-100UL PIONA Mix.1 - Paraffins 11 n-Paraffins with varying Wt% as listed below; units: 0.1mL, 0.5mL neat. Chiron No. Name: Wt.% Chiron No. Name: Wt.% 1299.5 n-Pentane 13 1131.11 n-Undecane 7 1232.6 n-Hexane 12 1132.12 n-Do Price on request 59254 Ammonia as N Price on request 57390 Thorium (Th) Price on request