Method 504.1LFB Mix Back Catalog number: 94019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 24P-DDT 1,1,1-Trichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane Price on request 675998 4-Ethylcatechol, 100mg Price on request 30114 EPA Method 551.1 Performance Check Soln Price on request