EPA Method 353.2 Nitrate + Nitrite Back Catalog number: 53120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10669.32-50-CF Secalonic Acid D Price on request 0985.28-100-IO d2 C28 Triaromatic Sterane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205529-81-3 Price on request 2998.9-K-CY 2,2,3-Trimethylhexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 16747-25-4 Price on request