EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3643.33-1G 1,2,3-Tricaproylglycerol, neat, Solvent-neat, Unit 1ml, # of units-1, Cas.no. 621-71-6 Price on request 19160 CLP Performance Evaluation Solution Price on request E4009-5G Eosin Y, Dye content ~99 %, 5g Price on request