EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72723 2-Ethylbutyraldehyde Price on request 97134 EPA Method 552.2 - Haloacetic Acids Price on request 3335.10-100-CY Chlordane, oxy Price on request