Volatile Standard Back Catalog number: 93901 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-537IS EPA Method 537 Internal Standard Primary Dilution Standard (IS PDS), 1.2ml, methanol Price on request 10634.12-50-T 1,2,3,6,7,8-Hexachlorodibenzofuran Price on request 83572 2,4-D Price on request