Phosphate (PO4-3) as P Back Catalog number: 54257 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94272 Pesticide Standard Price on request 93959 Semi-Volatile Standard Price on request 36055 EPA Method 552.2 - Haloacetic Acids, 1000µg/ml in in MTBE, 1ml Price on request