EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 18000-1230-10AN10 Triclosan, 10µg/ml in Acetonitrile, 10ml Price on request 10894.10-5MG 4-Hydroxysulfadiazine,neat,neat,5mg Price on request 70988 tert-Butanol Price on request