EPA Method 525.2 - 526 Internal Standard Back Catalog number: 91297 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3940.2-1ML trans-1,2-Dichloroethene, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 156-60-5 Price on request 1339.31-50-IO 17 alpha(H),21ß(H)-(22R)-Homohopane, 50µg/mL in isooctane, 1ml Price on request 32551 Chloroethane Price on request