Semi-Volatile Standard Back Catalog number: 94046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2715.9-50-ME Perfluorononanoic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 375-95-1 Price on request 1944.8-1G Sodium tetraethylborate, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 15523-24-7 Price on request 91424 EPA Method 507 Analyte Mix #10 Price on request