Perchlorate Level 3 Back Catalog number: 59341 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8770.18-50-T Dechlorane plus, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 13560-89-9 Price on request 90435 EPA Method 8080 - Surrogate Standard Price on request 95157 Freon Standard Price on request