This standard covers electromagnetic soft iron bars (hereinafter referred to as "rods") and rods (hereinafter referred to as "rods") used for relays, electromagnets, magnetic clutches, brakes, generators, motors, etc.'s iron cores, yokes, armatures, and other magnetic shields. ), wires (hereinafter referred to as wires), plates (hereinafter referred to as plates), and strips (hereinafter referred to as strips), as well as their test methods.