EPA Method 353.2 Nitrate & Nitrite Back Catalog number: 52120 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98518 BTEX (20 µg/mL) Price on request S-4677-100-DCX10 Custom Mix of deuterated PAHs 2, 100ug/ml each 1088 Benzo[a]pyrene 1337 Fluoranthrene Price on request 94867 1664 Oil & Grease Calibration Level #5 Price on request