EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2922.10-100-ME 2-(4-Chloro-2-methylphenoxy-d3)propionic acid, 100µg/ml in MeOH, 1ml Price on request 676493 5-Methyl-1H-benzotriazole, 100mg Price on request 0707.14-500-IO 1,4,6,7-Tetramethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13764-18-6 Price on request