EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72262 Sulfamerazine, 1000µg/ml in MeOH, 1ml Price on request C17668100 Triisobutyl Phosphate, 100mg Price on request 0033.34-10UG Dibenzo[cd,pg]bisanthene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 187-94-0 Price on request