EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12101.2-50MG MPPA,neat,neat,50mg, Price on request 9722.28-100-IO Octacosanoic acid, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-48-9 Price on request 38173 WS Herbicide Acid Mix #2 Price on request