EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8355.13 4-Methoxy-2,2',3,4',5,5',6-heptachlorobiphenyl, Please inquire, Solvent-, Unit , # of units-, Cas.no. Price on request 95156 Ketone Standard Price on request 1535.18-K-TX10 o-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 5142-76-6 Price on request