BTEX (20 µg/mL) Back Catalog number: 98518 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52401 0.10M NaOH Standard Reagent Price on request 1535.18-K-TX5 o-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 5142-76-6 Price on request 90397 Surrogate Standard Price on request