EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676598 Amitrole, 10.0 µg/ml, Methanol, 10ml Price on request 8644.12-50-NN 1,2,8,9-Tetrachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request FHPPA 3-Perfluoroheptyl propanoic acid (7:3), 1.2ml x 50ug/ml, methanol Price on request