EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 98224 CLP SOM 02.2 SVOC DMC Base/Neutrals Price on request 31491 1,2,4-Trimethylbenzene Price on request 0378.12-K-T Carbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 86-74-8 Price on request