Ammonia as N Back Catalog number: 50464 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 34001 EPA Method 524.2 - Additional Analytes Price on request 1994.10-50-IO 2-Chloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 91-58-7 Price on request 1146.26-K-IO n-Hexacosane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 630-01-3 Price on request