EPA Method 8260B Internal Standard Back Catalog number: 22213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 55088 CWA UV 254 Absorbance/ DOC Price on request 3351.22-100-CY beta-Cypermethrin Price on request 10206.10-100MG Isopropyl 4-hydroxybenzoate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 4191-73-5 Price on request