EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93754 Pesticide Standard Price on request 59583 ICP-MS Mix #1 Price on request XA15220000AL Mevinphos, 100µg/mL in Acetonitrile, 1ml Price on request