scope:

This standard provides uniform measurement procedures and estimation techniques for determining the effectiveness of room-size, high-performance electromagnetic (EM) shielding enclosures at frequencies from 14 kHz to 18 GHz (extendable to 50 Hz and 100 GHz, respectively). These procedures may be used throughout this range (except for some excluded frequencies), although certain frequencies are required.

Application. The measurement procedures herein determine the EM shielding performance of various types of enclosures, including the following characteristics:

(1) Configurations: single shield or double (isolated and cell-type) shield.

(2) Construction: demountable (bolted), fixed-seam (welded, brazed, or soldered), integral with building, etc.

(3) Materials: steel plate, copper, or aluminum sheets; screening; hardware cloth; metal foil; etc.