EPA Method 531.1 Individual Analytes Back Catalog number: 30041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97911 Paraquat Price on request S-4517-2K-10PE ISO 9377-2MOD Stearyl Stearate Test Solution 200mg Stearyl stearate in 100ml Extraction solvent standard solution (S-4516) Units: 1x10mL, 5x10mL, 10x10mL Price on request S-4502-40K-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