Metal-In Film Laminate 0.0030” thick (3 mil). Protects ESD sensitive contents from electrostatic fields and electrostatic discharges (ESD). <20 nJ Energy Limit Test per ANSI/ESD STM11.31. Meets ANSI/ESD S20.20 and ANSI/ESD S541 requirements for ESD shielding packaging inside and outside an ESD Protected Area (EPA). Dissipative Inner and Outer Surfaces Rtt 1 x 104 to <1 x 1011 ohms per ANSI/ESD STM11.11.