USGS 8022 Standard Back Catalog number: 93314 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-248-S 2,4,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 50414 Metals Mix 5C Price on request XA17100000AL 2,4,5-T, 100µg/mL in Acetonitrile, 1ml Price on request