EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681087 2-n-Nonylphenol, 100 µg/ml, Acetone, 1ml Price on request 673509 Chlorpropham, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 674491 PSA-C18-Mix 1 Price on request