EPA Method 504 - EDB & DBCP Back Catalog number: 19029 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50062 Sodium Nitrate (NO3-) as N Price on request XA18000323IO Pesticide-Mix 323, -, 1ml Price on request S-4502-60K-25IO Phosphorous Standards Phosphorus in Isooctane Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request