EPA Method 507/525 Analytes Mix #2 Rev.1 Back Catalog number: 31083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended TBBA 2,3,4,5-Tetrabromobenzoic acid, 1.2ml x 50ug/ml, methanol Price on request 11790.12-50-NN 2,4,4'-Trichlorobiphenyl ether,50 µg/mL,n-nonane,1mL, Price on request 1941.6-25G N-Methyl-N-(trimethylsilyl)trifluoroacetamide, neat, Solvent-neat, Unit 25g, # of units-1, Cas.no. 24589-78-4 Price on request