EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72421 Ethyl butyrate Price on request S-4881-500-WX10 Congener alcohols, 500μg/ml in Water, 10 x1ml Price on request 59133 ICV (Metals Mix #4) Price on request