EPA Method 525 - Perchlorinates & Phthalates Back Catalog number: 30129 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10457.12-K-T 4,4'-Sulfonylbis(2,6-dibromophenol), techn. Price on request MET-12848C-100MG 3-Phenoxybenzoic acid, 100mg Price on request 0346.21-K-IO 4-n-Nonylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93972-01-1 Price on request