Gas Internal/Surrogate Standard Back Catalog number: 92805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9059 Dibenzofuran Price on request 9954.31-10UG Bicadinane T1, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. Price on request 41002 EPA Method 608Mix #2 Price on request