适用于阴极射线管和阴极射线管组件，这些阴极射线管和阴极射线管组件拟用作仪器中的部件，并且对内爆的影响具有整体保护。 本标准涵盖的阴极射线管拟安装在一个外壳中，该外壳设计用于在正常操作条件下保护阴极射线管后部免受机械或其他损坏，并在发生内爆时保护用户免受从阴极射线管表面向后排出的颗粒物的伤害。

Applicable to cathode ray tubes and cathode ray tube assemblies which are intended for use as components in apparatus and which have integral protection with respect to the effects of implosion. A CRT covered by this standard is intended to be installed in an enclosure designed both to protect the rear of the CRT against mechanical or other damage under normal conditions of operation and to protect the user against particles expelled in a backwards direction from the CRT face in the event of implosion.