EPA Method 642 - Analytes Back Catalog number: 40057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59290 Turbidity Standard (1.0 NTU) Price on request 3519.6-100MG 1,2,4-Trichlorobenzene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 120-82-1 Price on request 51184 LUST Retention Time Standard Price on request