EPA Method 515.1 Surrogate Standard Back Catalog number: 30022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 97716 Carbon disulphide Price on request 679162 13C,15N2-2-NP-SCA, 10mg Price on request 681584 2,3-Dichloropropionic acid, 100mg Price on request