EPA Method 551.1 Internal Standard Back Catalog number: 30103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended L11202000CY trans-Chlordane (gamma), 10 µg/mL in CY, 10ml Price on request 679819 Sulfapyridine, 100 µg/ml, Methanol, 1ml Price on request ACQ-WH20-115 Ethanol standard in whole blood,2.0g/L,whole blood, 1.5mL Price on request