NWTPH-Gx Surrogate Mix Back Catalog number: 51139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2887.30-5UG 17 alpha(H)-30-Diahop-13(14)-ene, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. Price on request 92844 EPA Method 525.2 Pesticide Level 3 Price on request 38009 WS Chorinated DBP’s - EPA Method 551 Price on request