EPA Method 625 Base/Neutrals Mix #1 Back Catalog number: 19114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8823.8-K-IO 2,4,5,6-Tetrachloro-m-xylene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 681920 Fensulfothion-oxon-sulfone, 10.0 µg/ml, Cyclohexa Price on request 79220 Diethylene glycol Price on request