EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3441.10-100 Methabenzthiazuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 18691-97-9 Price on request 19232 EPA Consent Decree Water Protocol Price on request 676588 Ethametsulfuron-methyl, 100mg Price on request