Specially designed for EPA Method 1311: Toxicity Characteristic Leaching Procedure (TCLP) this 2.2-Liter bottle features the excellent chemical and temperature resistance of Teflon® Fluorinated ethylene propylene (FEP) with a wide mouth for testing large-sized samples. So durable and versatile this clear autoclavable bottle can be used at high or low temperatures for trace metal analysis and applications with organic solvents. Fluorinated ethylene propylene (FEP). Capacity: 2.2-Liters. 2/Case. Nalgene® #: 2101-2200.