ASTM D-4815 Quantitation Peak ID Mix Back Catalog number: 51070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52070 Spiking Standard #2 Price on request 72339 1-(2,4-Dichlorophenyl)-3-methylurea Price on request 3382.12-100 Dioxathion , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 78-34-2 Price on request