EPA Method 507/525 Analytes Mix #4 Back Catalog number: 30085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52313 Lanthanum Chloride Modifier (La) Price on request 8750.12-5MG 4,4'-Dibromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 2050-47-7 Price on request 82418 2-Chloroethyl vinyl ether Price on request