EPA Method 524.2 - Revision 4.0 Back Catalog number: 33001 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 1082.23-K-IO n-Heptadecylbenzene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 14752-75-1 Price on request 50465 Total Kjeldahl Nitrogen as N Price on request 3313.10-100-AN Azinphos methyl, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 86-50-0 Price on request