EPA Method 500 Series Internal Standard Back Catalog number: 31004 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8510.19-K-IO 1,1,1,3,17,19,19,19-Octachlorononadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request S-4263-ASS-IO Aromatics Calibration Standards Kit (4 Internal Standard Version) 24 Analytes + 4 ISTD, each Vol.% as listed in isooctane; units: 5x1mL Set, one of each Std. 1-5 + opt. 1x1mL (Std. 6) To these calibration standards are 4 fluorinated Internal Standa Price on request 53313 Lanthanum Chloride Modifier (La) Price on request