EPA Method 526 Surrogate Standard Back Catalog number: 93187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673275 Ethiofencarb-sulfoxide, 100 µg/ml, Acetonitrile, Price on request 31101 Chlorobenzene Price on request 1338.31-50-IO 17 alpha(H),21ß(H)-(22S)-Homohopane, 50µg/mL in Isooctane, 1ml Price on request